A euphemism, to "sink the kayak" is to ejaculate during intercourse.

When a guy inserts his balls (testicles) into a girls anal cavity.

Verb. Learning from the things that drag you down in life and swallow you up. Sinking well is turning your pain into something productive whether practical or creative and abstract. When you feel like complete crap and scrawl out a poem, that is sinking well.

No one can tell you what a sink whistle is

A sink full of dirty dishes that have been neglected due to excessive gaming.

Something said to notify someone of a gay couple or a sink with a turned faucet

when a celebrity goes outside naked and screams, “my husband & i just fucked for 2 days straight. i ate his cum and then popped my cherry like a balloon. he couldn’t fit inside my right pussy unless he took viagra!!!” then bites her clitoris and crawls on all fours back inside.