Soldiers must dig a 12" cat hole with their entrenching tool to defecate in the woods. When you drop a turd too long and hard for the cathole you dug for it, it inevitably topples sideways onto your boot.
Q: Did everything come out all right?
A: it was a real boot slapper
The sound two lesbians make during the scissoring position as their vagina lips clap together in a slapping motion
You see that girl over there
She use to be a Salmon Slapper before she went on Solids
When you stretch your partners vagina lips out so far that she slaps you with her pussy lips
Brandon: Yeah, we did the salmon slapper last night
Jake: No way!
Someone who is such a savage that they smack anyone even your grandmother
A nigga who slaps his own ass during sex
I just had sex with a burger slapper
Mature prostitute or slag
Wayne Rooney went with that auld slapper didn't he in that knocking shop in Aigburth?
One who lacks even a smidgen of ability in any video game, and in a panic rage of desperate attempt, slaps the entire controller / keyboard in an effort to scramble a victory.
ie. "Tom, why is it that every time I kill you in Halo, I hear a fury of panic slaps right before you die?"
Tom: I'm so out of practice, I go into full button slapper mode as a last resort.