The sexual act of coating ones hand with mouthwash (usually Listerine) and performing the act of fisting.
by Tim Crowbar October 25, 2017
Get the Fisterine mug.the act of breaking, butchering, or fucking something up that was perfectly fine for no reason other than personal satisfaction
by Wiggly 1 March 20, 2013
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by jack_hammer December 7, 2015
Get the fustering mug."I thought Francesca didn't want to be friends with Jacob anymore"
"Nah bro, hes fostering so hard she forgave him"
"Nah bro, hes fostering so hard she forgave him"
by Ben Benkins February 6, 2020
Get the Fostering mug.Listerine infection refers to a medical condition caused by the excessive use of listerine or similar antiseptic solutions used to maintain oral hygiene. Its symptoms include a rise in temperature, walking sideways, stalking your exes new girlfriend, a bitter taste in your mouth, cardiac insufficiency and apoplectic stroke like symptoms. If you notice any of the before mention symptoms immediately stream “Becky’s so hot” by Fletcher and presave her debut album “girl of my dreams”.
by Fletcherssohot July 28, 2022
Get the Listerine infection mug.Person A - You've been on the computer for awhile.
Person B - Yea, just been surfing fosterline. Lots of children to choose from.
Person B - Yea, just been surfing fosterline. Lots of children to choose from.
by lifeduzt July 23, 2010
Get the Fosterline mug.An ultimate derogatory term to be used when you need to insult a complete and utter fuck wit and shut them up when they are insulting you!!
Roger, you are without a doubt the most unfortunate festering cunt sore that i have ever had the misfortune to lay my eyes on! Now fuck off!!!
by Dr Phill17 July 2, 2009
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