1 definition by Jimbo Razorback

L.O.S.T. Stands for LINES OF SEMEN, TONIGHT. When a man fucks a woman or man untill the pinnacle of ejaculation, upon which he spludges a line of semen onto the chest of that man or woman, and proceeds to snort that line to reach a bizarre sexual euphoria. Popular in the frat houses of UofA.
Hey dude wanna get "LOST"tonight...

Bro I just got "LOST", *snivels* oh that feels so good.

After that gnarly longboarding accident I decided I needed to get LOSTwith my bros, my homie Chad let me bust an L on his chest and snort it off...high as a motherfucker.
by Jimbo Razorback February 10, 2011
Get the LOST mug.