cheeky finger 

The insertion of a finger into the anus during sexual activity.

This can be performed on either sex but generally is performed by a female on a male.

That chick went down on Maxwell and really caught him by suprise with a cheeky finger.

cheeky finger by SuperJesusHyperMonkey December 10, 2007

Cheeky Finger 

When your work mate (Adam) is bent over fixing a fence. You stick a cheeky finger up his bum while your other work mate (Joe) witnesses it.

See that guy fixing a fence, he looks like he could do with a cheeky finger.

Cheeky Finger by Cheeky Finger Man October 4, 2021

cheesy finger 

The aftermath of slipping one's finger into the depths of disease infested vagina, resulting in a mucus-like coating coupled with a putrid odor on the surface of the finger.

Anthony: "Dude that girl you hooked up with looked like a real skank!"

Eddie: "Yea I know, I've had this cheesy finger ever since."

cheesy finger by Pirate Suite October 5, 2006

4-fingered Scarlet Cheek 

when a individual belonging to either to the male or female species has just been thwacked in his/her face for reasons unknown to him/her and a four-fingered scarlet mark has been left on the thwacked cheek.

Dawson: "why do you have red marks on your face dude?"
Winston: "hey man, its not red marks... the label is 4-fingered scarlet cheek man! it's alright... i'll survive i got busted for not paying my dues"

4-fingered Scarlet Cheek by djquest June 15, 2010