by KateDeman April 22, 2020
Get the _kwstaspng mug.*verb* pronounced coss-tah-sing
1. To hold an alcoholic drink for an inordinate amount of time.
2. To pretend to be drinking hoping no one sees that your alcoholic drink has been at the same level for a minimum of at least 40 minutes.
3. Challenging others to drinking contests in hope that they are too drunk to see you haven't been drinking at all.
Also see "Nursing"
1. To hold an alcoholic drink for an inordinate amount of time.
2. To pretend to be drinking hoping no one sees that your alcoholic drink has been at the same level for a minimum of at least 40 minutes.
3. Challenging others to drinking contests in hope that they are too drunk to see you haven't been drinking at all.
Also see "Nursing"
Conner: "Dude, come on chump. Man up and just down that beer already!"
Milo: "Screw you bro! Don't challenge a Beerlympic champion when you've been kostasing your beer all night!"
Milo: "Screw you bro! Don't challenge a Beerlympic champion when you've been kostasing your beer all night!"
by The Tang Bang Crew May 19, 2008
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