Cleveland Blowns
Cleveland Drowns
Minnesota Twits
Pittsburgh Irates (to go with the Texas Angers)
Pittsburgh Prates
Chicago Dulls
New York Kicks
Philadelphia 86ers
New Jersey Evils
Buffalo Balls.
“The University of South Carolina Gave Cocks”
Chicago Bulks
Chicago Rears
Chicago Black hacks
Chicago White Sex
The DumAss Minutemen (UMass)
Orlando Manic
Dallas Scars
Utah Razz
New York Slanders
Boston Ruins
Washington Crapitals
Va Tech Chokies*
*With deepest apologies to my alma mater.
From back in the day,
Washington Mullets.
You may not like this: New York Wankees. 
The problem, of course, is that the team requires TWO substitutions: the New York Wankers.
Tampa Bay Gays
From the Canadian Football League:
BC Loons
Edmonton Eskimoos
Saskatchewan Doughriders
Winnipeg Glue Bombers
Hamilton Tiger-Carts
I love all of these - making funny names up is one of my favourite things.
Calgary Flamers (not that there’s anything wrong with that)
Edmonton Oileds
Toronto Maple Leaks
Montreal Candiens
Vancouver Canfucks
Calgary Shampeders
Toronto Argonuts
Hamilton Tiger-rats
BC Loins (since we’re accepting transpositions)
Saskatchewan Rugriders (I took two out - sue me)
Winnipeg Slue Bombers (going phonetic there)
Good work, Other Lebowski - I gave up on the Esks.
Oregon Sucks
California Golden Beers
This message brought to you by the Hac-10 Conference.
Hac 12?
And thanks BW!
Let’s do the EPL
Arsenal Bunners
Blackburn Trovers
Chelsea Flues
Everton Puffies (2, but couldn’t come up w a better one)
Fulham Rottagers
Liverpool Freds
Manchester United Rod Devlis
Newcastle United Fagpies
Portsmouth Pimpey
Stoke City Pitters
Sunderland Black C*nts (again, 2 letters)
West Bromwich Albion Faggies
West Ham United Hampers
Wigan Athletic Latex (2 for 3 there)