1) This is the act of having sex with a girl (skank) and your junk slips out and slids in the ass. The only thing is you don't realize it and she has to tell you.
2) baning a chick and having you cock go into her ass, but her ass is so gapping that you don't even know you slipped up.
Karl: "I was going to town on her and all of a sudden the Saginaw Slip up!" "I stopped there."
Jimmy: "HUH, Saginaw what up?"
Karl: "Dude, she had to tell me my dick was in the wrong hole."
Jimmy: "Oh, the Saginaw Slip Up, I've done that to your mom."
11👍 2👎