Top definition
An engorged penis (or its metaphorical equivalent, a state of sexual or quasi-sexual arousal) that results from intellectual stimulation.
Baby, the way your tongue trips across the philosophical terminology and so cleverly articulates the existential quandary--you really give me a smart on.
by joelmw October 23, 2010
Get a smart on mug for your mate Rihanna.
Sep 11 Word of the Day
when you're hungover as shit after a spending a night drunk as a skunk
I'm hungover as a duck let's go get some grub
by pokeythepony June 25, 2021
Get the hungover as a duck neck gaiter and mug.
2
It saddens me to think that the intellectually challenged are incapable of a smart-on. But a good, liberal arts education is the sure cure for their cerebral impotence.
by joelmw October 24, 2010
Get the smart-on neck gaiter and mug.
3
I sat with my woman discussing life's imponderables and ended up with hardcore smarton.
by joelmw October 24, 2010
Get a smarton mug for your mom Nathalie.
4
An erection caused by intense intellectual thought. Came to inception due to its rhyming with the word/phrase "hard-on".
Bill got a raging smart-on when he realized all of the work that goes into the creation of a single pencil.
by TronsauseFiveMillion December 06, 2010
Get the smart-on neck gaiter and mug.
5
what a woman on crack says to you in macdonalds after asking if you're in a cult...
"hey, are you guys in a cult?"
"no"
"oh well...smart on!!!"
by whoopie Goldberg January 29, 2008
Get a smart on mug for your mate Helena.
6
When you suddenly think of something awesome. Like a hard-on but with your brain.
Mike- we need some new ideas
James- OH MY GOSH I just had a smart-on! What if we build a waterproof phone!
Mike- THAT'S GENIUS
by ImSoCoolLolJk January 01, 2013
Get a Smart-on mug for your mom Yasemin.