Finger Bump 

When two people finger the same vagina at the same time; and touch hands whilst inside said vagina.

May or may not include eye contact between the two fingerers making eye contact.

It was so cool when we finger bumped inside of Barbara whilst in the bus the other day.

Finger Bump by Ksmith666 November 20, 2019

k-west finger bump 

When your partner inadvertently or un wantedly tickles and or penetrates your anus with one or more fingers.

"Yo yo baby stop! I aint into no K-west finger bump"!

k-west finger bump by GPz550 August 17, 2016

FingerBumCakes 

FingerBumCakes is a finger inside someones arse or a finger in a cake sticking to someones arse this is also a Catchphrase used by Macsta Attack 1996 and His Following

Oh finger bum cakes i died, why did you do that for? FingerBumCakes

FingerBumCakes by Nippleboblin1996 May 15, 2018