cheek slapper 

A hugh expulsion of flatulence that causes the mussels of the glutumus maximus to slap together. Often used as a independent demonstrative expression of awe or pride of accomplishment.

Wheew...that was a real cheek slapper! or
Wait for it...now THAT was a real cheek slapper!

cheek slapper by Global Feetus April 2, 2007

cheek sclapper

cheek clapper + cheek clapper

“yo my new legal name is cheek sclapper”
“that’s dope”

cheek sclapper by raynie13333 May 26, 2022

slapped cheek disease 

a mild rash illness that occurs most commonly in children. The ill child typically has a "slapped-cheek" rash on the face and a lacy red rash on the trunk and limbs. Occasionally, the rash may itch. An ill child may have a low-grade fever, malaise, or a "cold" a few days before the rash breaks out. The child is usually not very ill, and the rash resolves in 7 to 10 days.

Although we would expect slapped cheek disease to come from chronic incidence of being a jerk, it is actually caused by the human parvovirus 19.

slapped cheek disease by MintyLeila September 23, 2005