Top definition
an enlargement or expansion in bulk or extent, the opposite of contraction. It derives from the Latin dilatare, "to spread wide".
"Shit dude, your eyes are dilated, it must be from all of that cocaine"
"That can cause blurred vision, I better not drive."
by Gracker February 01, 2010
Get a Dilate mug for your cat Nathalie.
Aug 11 Word of the Day
A phrase to describe someone who is cognitively degenerating. Synonym of "going off the deep end". Can have varying degrees of severity.

Reference to the song "Hey You" by Pink Floyd. The line "and the worms ate into his brain" makes no sense in an otherwise linear and literal narration throughout the lyrics.
"My boyfriend has a total case of brain worms. He told me the cat was bugged so the Feds could listen in on us having sex..."

or

"You totally stumbled over that entire sentence. Can't speak English all of a sudden? What, do you have brain worms?"
by _Jez_ October 03, 2009
Get the brain worms neck gaiter and mug.
2
Somehow an insult towards transgender women, based on the fact that, much like piercings, vaginas created with surgery may need to be kept in shape following the procedure, at least for a few weeks. For some reason used as a zinger on imageboards, despite the practice being commonplace and benign.
Person 1: Trans people have the right to be happy
Person 2: Dilate
by Universe22000 October 31, 2019
Get a Dilate mug for your girlfriend Riley.
3
Eleanor was 102 years old. She really did dilate.
by Dilater February 19, 2011
Get a dilate mug for your cousin Manafort.