If you aren't using Embiggen in your everyday jibber-jabber, your life must be sad and small. The Simpsons have been around for a couple decades now, and have given us so many fabulous words and made-up Simpsons sayings and Bart slang... SO many that, really, should be in the dictionary despite their dubious meanings. I mean, if you can't figure out what Tramampoline means... come ON. There's a more complete list out there somewhere, I'm sure, but these are the best of the fakes... the best words that the Simpsons have given us.
JeebusI don't even believe in Jeebus... save me Jeebus!
Me fail English? That's unpossible!
SmrtI am so smart. S-M-R-T.
EmbiggenA noble spirit embiggens the smallest man.
TomaccoOh, Daddy! It tastes like Grandma!
GymGym! "What's a Gym"?
Lousy Smarch Weather
The word "unblowupable" is thrown around a lot these days...
CromulentIt's a perfectly cromulent word
TramampolineAn alternate Homer-ized form of trampoline. "Tramampoline! Trambopoline!"
NucularIt's pronounced Nu-cu-lar!
Steamed HamsAnd you call them steamed hams despite the fact that they are obviously grilled.
KwyjiboA big, dumb, balding North American ape with no chin and a short temper.
FoilageThat's what I said, foilage. It doesn't take a nucular scientist to pronounce "foilage".