Sink shitter 

When someone takes a shit that smells so bad, you could believe that they've taken a shit in the sink.

OMG, Who's the sink shitter?

Sink shitter by Sizwer December 15, 2021

sinkspitter 

an individual who performs fellatio until ejaculation and does not swallow the semen but instead abruptly leaves the room and runs to the bathroom sink to spit out the ejaculate.

My girlfriend is a sinkspitter because she does not swallow my cum.

sinkspitter by GangWarily June 1, 2006