BSI


short for batsh-t insane i.e. beyond crazy

see: batsh-t insane or bat sh-t insane
person #1 “i just saw some chick take her clothes off and run down the street naked”

person #2 “she must be bsi”
black screen idiot- somebody who goes onto a video-chat site and doesnt turn there camera on or they block it from seeing them…… why go on to a video chat site if you arent going to let people see you!!!!
friend: yo what are you doing
you: im on chatroulette….. holy sh-t another black screen!!!!! im so sick of these bsi’s

friend- yeah i know, im so sick of them

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