If you've ever seen the Super Mario Bros. Movie, then you've seen the giant goombas. The goomba effect is is wen the person's head is abnormally small for their body, just like the goomba.
by CaileAsura August 23, 2009

When a man pokes his erect penis into his partner's cheek causing their mouth to open, to stick their tounge out and to look confused similar to the Goomba's in the Super Mario Brother's Movie.
by Adam RD October 25, 2006

The mushroom print embedded in one's forehead left from a circumcised penis smashing down with brutal force. The magnitude of velocity leaves a goomba resembling impression.
I was teabagging Priscilla last night and after I busted on her sweet tits I gave her slutty ass a goomba stamp kid!
by Tha Wall November 28, 2006

by Lukevdp28 February 22, 2011

by jeebuss March 12, 2011

Then Vanni put Goomba Fiz on adams cheek and when he woke up he yelled "ew what smalls like cheap spaghetti"
by Finlay33146 April 15, 2008

A person who jumps between dicks as if they were mario scoring extra points for chaining stomps together on goombas one after another.
by Psylen April 26, 2022
