As firm names go, I like Mofo.
If I were a lawyer and started my own firm I would call it Hungadunda, Hungadunga, Hungadunga, and McCormick.
I think I recall from my professional responsibility class that most state bar associations have rules about the individual’s names that can be included in your firm name. For example, though it might lend prestige to my firm to call it Marshall & Holmes (after the supreme court justices), unless there are a Marshall and a Holmes, at some time in the firm’s history at least, the rules would prohibit it.
Don’t most barristers’ chambers (yes, I realize it’s not the same thing as a law firm; just a bunch of sole practitioners sharing office space & clerical staff) have names based on geography or even just their street address?
Who you gonna call? Chargebusters!
In the fine state of Maryland, in order to operate as a professional service corporation, one MUST put their surname in the title. So that rather limits the options.
Dewey, Cheatem and Howe?
A man decides to call a law firm called Smith, Smith, Smith, and Smith. He asks to speak to Mr. Smith. The voice on the other end of the phone says, “He’s with a client.” He asks to speak to Mr. Smith. “Sorry, he’s at lunch.” Okay, can I speak with Mr. Smith? “He’s not in today, he’s out with the flu.” I’m sorry to hear that. Can I talk to Mr. Smith? “Speaking.”
I’d definitely hire Kapowzler, Kapowzler, Cow Anuses, and Shit.
The name is Cheatham. “Cheatem” is not even a pun.
How can I be the first to mention Mousebat, Follicle, Goosecreature, Ampersand, Spong, Wapcaplet, Looseliver, Vendetta and Prang?
Because they’re advertisers, not lawyers.
The posts about restrictions on professional service firm names seems to make sense.
There is a firm around here that specializes in “lemon laws” for cars. Legally they are Kimmel and Silverman, but everywhere else they are lemonlaw.com. They drive these yellow VW beetles with Lemon Law.Com plastered on the side. That’s branding, but again, legally they have to be Kimmel and Silverman.
Law firms can be branded around a person. After all, that is what they want you to buy into. When Joel Hyatt started Hyatt Legal Services, I suppose he could have called it Cheapo Attorneys R Us. But who would go there? Better to have Joel throw his mug up on the screen and tell people that they have his word on it.
If you want a different name for your law firm, you probably need to get a partner with a cool name. Freshfields Bruckhaus Deringer which is based in the UK is usually just called Freshfields which is different at least.
So if you start a law firm, legally change your name to John TaxBuster. Then you can call it Taxbusters Legal.
In states that have strict naming guidelines, you likely won’t be able to get away with this.
Obviously, I should memorize the not-so-funny lines, too. 
Out of curiosity what are law firms like in non-English speaking and/or common law countries like? Say France, Germany, Argentina, Russia, Japan, etc.
New York is home to the atypically punctuated Stroock & Stroock & Lavan. There must be a story behind that extra &, but it might not be all that interesting.
The non-U.K. firms (Spain, Italy, France, Germany, and Netherlands, mostly) appearing in this list seem to follow the same naming pattern of British and American firms.
My law firm (OK, its just me and my wife) is named “LastName Legal Services, P.C.”, and a friend of mine has a law office named “Plains Law Offices”, named after the geographical feature. That’s about as wild as I’ve seen it.
When I was working for a couple of big law firms, I kind of thought the names backfired. If your name is on the firm, and you are dealing with an attorney whose name isn’t listed, it seems that you may feel like your a second-class client. (Although one of the firms I worked at, the last named partner died in the 1950’s.)
Accounting and consulting firms used to be the same way until about the 90s. After the merger, Price Waterhouse and Coopers and Lybrand came up with the infinitely more eyeball catching brand PricewaterhouseCoopers (or PwC). Whatever KPMG means, they were content to be an acronym. Deloitte & Touche went with the dot-comy Deloite. (note the period at the end). Even (the now defuct) Arthur Andersen’s consulting spinoff Andersen Consulting got on the dot-com tech consulting firm nonsensical one word name bandwagon and became “Accenture” (And they even hired a…gasp…Negro to be their spokesperson.
And now it’s all pictures of powerplants at sunset and urban monuments and good looking people in suits writing on whiteboards with Expo markers. Exciting stuff.