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1.
Often misconceiced to be of Latin origin, this word actually derived from post-modern English slang.

This word was once used to describe flatulating while kissing a beloved and was considered the deepest sign of comfort and offection towards the receiver of the odorus kiss.

Today, this word is modernly used to describe flatulence that puckers the anus. In rectal punctuation, it is known as an exclamation point "!"
"My belov'd received thyne fartkus...love knows no bounds"

"Did you hear that fartkus?? Your butt just said, 'ooooooh, snap!'"
by Ray Liza February 04, 2010
 
2.
someone you dont like

or a stupid boob
talkin to some 1 you dont like - your a fartkus
by BECCA September 11, 2004