Fun tube

The tube that the fun stick goes into, otherwise known as a fun tube.

Keith: Hey Ashley, I wanna fuck you so bad! Im so horny!
Ashley: Sorry keith, my fun tube is off limits this time of the month.

by AshandMich November 6, 2011

fun tube

the rolled up dollar bill you snort coke with

Can you grab the fun tube so we can do this line of blow?

by chellito bebito March 2, 2017