It is usually mentioned for someone with a big dick.. When a person has a boner, and when the dick gets very big its called thunk deck
by blumblee September 16, 2015

I thunk I saw you over there
by Mallee June 13, 2022

by bbbraydennnn June 29, 2020

Miranda was thunking around on the wood floor so loudly this morning, I wanted to hit her with the frying pan.
by Terradactyl Skye January 21, 2011


by thunkygorl1 December 28, 2024

Person 1 "I have a riddle for you. A polar bear is in a circular zoo enclosure he escaped in the middle of summer. How?"
person 2 " easy, pfhhh pfhh, thunk thunk thunk thunk, yipie!"
Person 1 " ... Why am I friends with you? "
person 2 " easy, pfhhh pfhh, thunk thunk thunk thunk, yipie!"
Person 1 " ... Why am I friends with you? "
by ThePolarBearInQuestion August 7, 2023
