Thwack

hero's move in smash that can insta kill anyone

Jack: i have reverse card try and beat me bob
Bob: (thinking emoji) Thwack

by b i g up December 6, 2019

Thwack

To receive a hand job or blow job, and to not finish.

"Dude, she was thwacking me for an hour yesterday."
"How did you not finish bro?

by Dan GleeSack December 8, 2012

thwack

to hit hard and percise. Usualy producing a THWACK sound.

With a "THWACK" the bamboo rod hit table.

by Myoga1 February 24, 2004

thwacked

to be speed up as much as possible off of speed/meth

lets get all thwacked out, go to the titty bar and rub tuna on ourselfs then go home to our women...

by Dann¥ June 6, 2007

thwack

to hit

Nikki thwacked her friend on the arm.
*thwacks you

by ^_^ September 28, 2003

thwack

To firmly slap ones penis across another persons face i.e. to be either very manly or very homosexual.

"Dude! That little limp wristed faggot just thwacked me!"

One jock buddy says to another...
"WHOA! Billy's asleep, someone thwack him!"

by Steven Spears April 14, 2005

thwacking it

to thwackit is to jackoff, spank the monkey, flonk the dolphin, rope the poney, wrestle with the snake, choke the chicken etc. etc.

jimmy thwacked it all night until his shlong turned chrimsen.

by da cheese June 17, 2003