When you're eating macaroni and you feel a little pony in your pants.
When you're sliding into first and you feel something burst. That's a macaroni slide.
by Baginaria August 10, 2006
in skateboarding or rollerblading, when you fall on a ramp and slide down all limp looking like macaroni.
I did a macaroni slide when i fell.
by man June 19, 2004