Okay, I love this thread, but some of these songs are my favorites! "Make Them Hear You" is one of my fav songs from Ragtime. Anyway, here is my list:
"Something Just Broke" from Assassins - this song definitely needed to stay out of the show. The transition from JFK's assassination to the finale in the off-broadway production is a great moment and this song ruined that!
"When the Sun Goes Down in the South" from Big River - awful, awful song and really has no point imo
Most of Cats and PotO - ugh! However I'll admit some songs such as Memory (though highly overrated) and Think of Me are bearable.
"Toledo Surprise" from Drowsy Chaperone - They definitely could have done a better job. This song annoys me to no end.
"Grant Avenue" and "Fan Tan Fannie" from Flower Drum Song
"I Landed on Him" from Floyd Collins - A good song for the purpose it serves, but could easily be cut and is painful to listen to.
"Cooties" from Hairspray
"Welcome to Kanagawa" and "Please Hello" from Pacific Overtures - sure, they're important, but that doesn't stop them from being terrible songs.
"The Crime of the Century" from Ragtime - omg, this song makes me want to shoot myself
"Knights of the Round Table" from Spamalot - this was a bad song in the movie and making it longer does not help its case!
"Magic Foot" from Spelling Bee - okay, this song makes me upset with the outcome of the bee. If he's going to win every time at least give him a better song!
"My White Knight" from The Music Man - What better way to characterize a leading lady than by giving her a god-awful, boring song
"The Riddle" from The Scarlet Pimpernel - I'm not going to lie, I actually like this song. But the lyrics are so incredibly cheesy I have to put it on the list.
"Move That Thang" from The Wedding Singer - okay, so the rapping granny thing was cute for the movie but that doesn't prevent the entire number from being absolutely terrible!
"Something Bad" and "Wonderful" from Wicked
And the all time awesomely bad song on Broadway is...
"Chow Down" from The Lion King - and how did this musical win over Ragtime? Oh yeah, Shadowland...
Dancing through life...
For the next ten minutes