Derived from the quote "In there like swimwear", this word refers to having sex, coitus, or intercourse with a woman. Women cannot say this unless referring to a guy having sex with a girl. "In there like swimwear" usually refers to when someone scores in some sports game. This is quite similar, but you score with girls.
George: Howd your date go last night?
Hayden: Swimwear
George: Damn, you swam that wear dude?
Hayden: Hell Yeah! This is what I fucking live for!!!!!!!!!!
by Shaomaster October 30, 2011
what you wear when you swim

usually referred to as bathing suit, swimsuit or for guys, swim trunks
my moms making me get new swimwear.
by mhmyeahthatsrite July 22, 2008
successfully sink a shot in any sort of beer drinking game
In there like swimwear! (teamates would high five if it is a team game)
by Eric Dolton September 24, 2003
1. a sure thing; a lock; goal attainment is assured; prospects are brilliant

2. all over it; about to take care of with gusto

From the tendency of thongs and other tightfitting swimwear to become wedged where the sun never shines

"In there like swimwear" is "in like Flynn" for a new millenium. Can you name a single Errol Flynn movie? But everyone knows (and loves) the Thong Song.
"Make friends with her friends and you'll be in there like swimwear."
from The Player's Rulebook
by mandingoe June 15, 2004
When you're playing a movement character and go absolutely beserk by shoving your fire arm up the enemy team's anal cavity.
by hardstuckval December 20, 2020
What a place, generally a school or a summer camp, will place. AKA,a dress code for swimming. Depending on your view, it can be used to preserve decency or be really sexist towards females.
Because of the summer camp places a swimwear regulation,no female can bring a two piece to wear during swimming.
by BabyEinsteinFantic March 9, 2022