by blastmaster13 November 21, 2017

by Natsu00420 December 21, 2022

by Janelle foster December 4, 2018

by ur69mom<33 November 16, 2021

A Koster Foster is a/are sad cunt(s) who can only get by and survive in life by the means granted to them by a host, directly implying they are parasitic. Persons who use lies, deceit, manipulation, abuse, psychological discourse and societal/social sympathies to acquire a foundation to provide for themselves the necessities and luxuries of life whilst giving nothing but lackluster entertainment of flesh in exchange for everything else. Coveted by pathetic beta boys who would never/only very luckily catch the eye of and entertain the opposite sex by subscribing to a norm of paying for bad pussy. Revered by even sadder and often more pathetic females who only value their lives in terms of the price tag attached to their involvement.
You see that girl over there that has no job, car, lives at home with her mom and spends all her time slinking around the same bar every night? She is looking for prey, she is such a Koster Foster its not even funny.
by Phuck Yuh August 23, 2019

A foster fuck is someone that is constantly used by others as a rebound. But in a way that they show the hurting person how amazing they should be treat. Like fostering an animal to find it’s forever home. Similar to the movie Good Luck Chuck.
Him: “You’re so good to me and treat me so well, but I don’t want to date you.”
Her: “ Oh I know, I’m just a foster fuck for you, until you find someone that you think is better.”
Her: “ Oh I know, I’m just a foster fuck for you, until you find someone that you think is better.”
by KiloRomeoWhiskey October 31, 2019

Billy Foster is the worst person you can ever meet. Billy also thinks he is more important than you and is Big-headed. He’s aggressive, bossy, hostile and bitchy. Finally he’s lazy, weak, gullible, cowardly. He even use to play games on a fucking toaster.Most of all he puts music commands in the main channel .
by PlsCallMeJimmy January 13, 2019
