A woman that is ugly, bitchy, harpy, shrewish, or has any other unattractive characteristic that makes her sexually undesirable to a man. Said of a woman that temporarily kills sexual desire because of physical or personality traits that do not a man want to have her.
Joe: "Kate is a Boner Shrinker."
Alex: "Yeah, she ain't very pretty."
Joe: "Not just that, but she is a complete bitch. That is what I meant."
A pair of pajamas so unattractive (for example: baggy flannel pajamas) that they make the male penis shrivel back inside, preventing an erection from occurring.
Yo girl, I was just ready to get my freak on until you changed into those ugly ass dink shrinkers.
When referring to a man's erection as a boner, a boner shrinker would be anything that diminishes it. Most likely an unattractive woman. Made famous by the 9/13/2008 opening skit of Saturday Night Live dialog by Tiny Fey and Amy Poehler:
FEY AS PALIN: "So we ask reporters and commentators, stop using words that diminish us, like 'pretty,' 'attractive,' 'beautiful.'"
POEHLER AS CLINTON: "'Harpy,' 'shrew' and 'boner shrinker.'"
Basically just a shooter game that you play when you're bored at school and want to shoot people.
There are 4 classes, a sniper in which "Good" players use which can one shot, but the bullet travel cripples you. You got a shotgunner who's shotgun is worse than his pistol at close range. You have a guy with an Ak, not so bad, and is fun to use. Then you got the guy with a rocket launcher, run if he's good, you're gonna blow up.
Example:
Patricia: Hey (redacted), wanna look at my Shronkey fanfic?
(Redacted): y-your... your fucking what
Patrcia:
(Redacted):
Patricia
(Redacted):
Patricia: my shrek x donkey fanfic-
(Redacted): oh my fucking god patricia, your sins are many, but god's are apparently greater