http://www.metrolyrics.com/im-so-glad-lyrics-cream.html Hard to beat this beauty.
Deep Purple had some good songs, but writing lyrics was not their strong suit. As evidence, I give you “Child In Time”:
*See the blind man shooting at the world
Bullets flying, ooh taking toll
If you’ve been bad - Oh Lord I bet you have
And you’ve not been hit oh by flying lead
You’d better close your eyes, aahaouho bow your head
Wait for the ricochet
Ooo-ooo-ooo-ooo…
Ooo-ooo-ooo-ooo…
Aaa-aaa-aaa…
Oh, I wanna hear you sing…
Aaa-aaa-aaa…
Oaoh…
AAA-AAA-AAA!!
AAA-AAA-AAA!!
*
These are quintessentially bad English lyrics. I don’t think Americans are capable of pronouncing “Oaoh”, not to mention “aahaouho”*.
Even Don Ho would have had problems.
On top of the dodgy lyrics, the music was plagiarized from It’s a Beautiful Day.
The irony is that around the time of Abracadabra, in an interview with Rolling Stone, Miller actually had the balls to say Pete Townshend wrote bad lyrics.
It burns, it burns.
I hope you realize that Cream didn’t write that song; Skip James did. One of the many unsung heroes of the blues.
My Paul McCartney bad lyrics moment isn’t really because the words are bad, but the way they are sung is:
“She gives me everything,
And tender-LEEEEEE-EEEEEEEE.”
I cringe every time.
But we gotta go with Starship, with the worst lyrics, sung horribly, in a shit melody, backed up by the most mundane hash of synthesized chord progressions ever:
“Knee deep in the hoopla, sinking in your fight
Too many runaways eating up the night”
and
“Who counts the money ,underneath the bar
Who rides the wrecking ball into our guitars”
I could go on … but it’s too depressing.
That goes for every David Gilmour written rhyme. I was thinking of adding him to this thread, but I’ll just cite the whole Momentary Lapse of Reason album, a case study in trite rhyming.
Beauty! When I hear that song, I first begin to laugh, then fall silent in confusion. What strange confluence of events could possibly have resulted in that song being written and then shared with us? It truly boggles the mind.
Fucking muskrats are bad enough.
It was, a joke, son.
Oh, yes. ‘‘Drops of Jupiter’’ makes me stabby.
Hey, hey hey you suck.
Has anyone else heard the rumor that the word “Jupiter” is slang for “semen?”
Joe
I always geta chuckle out of this Train lyric though:
Smokes a pack a day, wait, that’s me, but anyway
My candidate for worst single line in an otherwise OK song:
“If I was a sculpture, but then again, no.”
I think the line was “If I was a sculptor, but then again, no…”.
A female leopard is a leopardess. (You made me google it.) Come to think of it, “leopress” sounds more like a female with leprosy. That’s a whole different song.
It’s “Sculptor”, not “sculpture”.
The “Sugar Bear” 's sung in Someone Saved My Life Tonight are pretty stupid as well.
Yet another lyric I’ve been hearing wrong all this time. I’ve been hearing “into our guitars” as “in two watt guitars”. Obviously what I’ve been hearing is pretty bad, but the actual lyrics aren’t much better.
Up The Ladder To The Roof, the catchy music destracts from the lyrics
If the Supremes sang “Up the ladder to the roof, then jump and you’ll see heaven much better.” It would’ve made more sense. 
Having had to sing these lyrics several hundred times in the 90s as a cover band singer in college bars, the worst lyrics are from Bush’s “Machinehead”:
Got a machine head
it’s better than the rest
green to red
machine head
Got a machine head
it’s better than the rest
green to red
yeah, yeah, yeah
I thought as much when I first heard that song, particularly the “drops of jupiter in her hair” line. Maybe I just have a filthy mind. I wasn’t wrong about “Yummy, Yummy, Yummy, I’ve got Love in my Tummy,” though!
Let me just say: although I love Nirvana, did they have even one song where the lyrics made sense?