The sexual act where the finger is inserting into the vagina or anus to imitate the motion of an inserted penis. Also: finger, fingerfuck.
Before we had intercourse, he proceeded to arouse me first by fingerbanging my vagina.
by Steven March 27, 2003
An extremely talented boyband featuring Cartman, Kenny, Kyle, Stan, and Randy Marsh.
"I'm gonna fingerbang bang you in to my life."

genius words from the guys themselves
by hiphophead293847 January 13, 2010
when a guy sticks his fingers fast up a girls pussy and rubs and pets inside
he pulled off my thong, and stuck his fingers half way up my pussy and rubbed my walls, then fast pushed then up all the way, jamming and petting me inside roughly, fingerbanging me
by quealana October 7, 2007
Dude, Did you listen to MDK's new song, Fingerbang?

Yeah dude! It's the best song by MDK by far!
by WobblyMan May 24, 2019
The act of forming a gun with ones hand, with the index and sometimes also middle finger as the barrel, and pretending to shoot at someone.
Sometimes one exlaims a "BAM!" or "Bam-eti-bam!" at the same time, indicating that one has "bammed" (i.e. beated or mastered in some way" the person being fingerbanged.
Ha, I won! Bam-eti-bam! *fingerbangs*
by Apfelstrudel August 10, 2006