(v.)
To urinate into someone's ass while performing active anal sex.
"Oh baby, it felt so good when you yellowtailed me last night!"
When your having anal sex and someone pees in your asshole.
Girl: I was having a great time in bed until my boyfriend gave me a yellowtail.
When a man accidentally pisses on the back of his underwear while sitting down to shit.
Sam:"why are you holding your boxers out under the hand dryer? "
James:"I totally was yellowtailing it while I was taking a deuce"
Smacking a bitches ass Profusely
Let’s go give a nigga yellowtail in the club tonight.