An expression that resembles "one night stand". It is when a gentleman has completed the ejaculating process on the female counterpart after sexual activity. Then immediately takes off into the night without a trace.
A variation of the oh so popular phrase "hit it and quit it", which of course references someone having sex with some1 quickly and getting on with their day and or life. Just for clarification the "bust a load" portion has to do with the act of ejaculating during intercourse and the "hit the road" part means just that...leaving the scene of the crime.
Ray: So... i heard u're trying to get with my girl Jenny over there.
Malik: Listen playa...i'm not tryna "get with" her...i'm tryna get it in with her. I just wanna bust a load and hit the road... u kno no strings attached.
Ray: iight den, i respect that
Person number 1: You've heard my story about me getting caught flogging my dolphin???
P2: No?
P1: Well, I barricated myself right in the back off the car and started beating it.
P2: And?
P1: My mom turned around and took her jacket... And uncovered my meat.
P2: Haha! Goooooood 'ole load on the road!