When you invite all of your friends to a smack party and they think it's a party where you all take smack. But when they turn up they realise it's a mass spanking of ass where everyone spanks each other's arse.
by ZazaMcK April 6, 2016
When you smack your dick on a girls face as your cumming, usually after reaching climax from a blowjob.
Jeff: Yeah man I party smacked my bitch last night, she got soaked!!!
Tony: Thats crazy dude, she deserved it for giving you blue balls last time.
Tony: Thats crazy dude, she deserved it for giving you blue balls last time.
by Heat Bussa April 10, 2008