Maximus Sideflip 

After seeing the success of John Backflip and later William Frontflip in the early 14th century, Maximus Sideflip got inspired and performed the first Sideflip in 1334. Later in 1336 while performing in front of a crowd he was accused of using witchcraft which he had allegedly learnt from John Backflip while he was in exile. Rumor has it that He was trying to copy the Backflip but he was terrible at directions so he accidentally invented the Sideflip.

Person 1: Who invented the sideflip?
Person 2: It was Maximus Sideflip back in 1336.

Maximus Sideflip by M4nnen March 14, 2025

sideflap 

A piece of fat on someone's side.

"I'm going to pinch your SideFlap."

sideflap by Tacoo April 14, 2014

Sideslip 

A leisurely form of sexual penetration in which the male is lying on his side behind the female, and inserts from up and under. Best enjoyed in the morning hours, when the girl is not yet awake enough to object to this impersonal form of coitus, one that becomes very personal by its grand finale.

n. the sideslip, I gave her the sideslip
v. to sideslip, sideslippin on 4, 4s, she got sideslipped last night

Ronald: "Hey Billy, what'd you do with Sally after the bar?"
Billy: "Well Ronald, we went back to my place and I eskimo'd her down the stairs. But then this morning, once I put my pocket-t back on, I gave that bitch the sideslip. She met the business end of my d!$%"

Sideslip by Professor JLB April 1, 2008