(S)ecret (S)kate(B)oarding (S)pecial (T)rick (S)ense- when a 6 to 8 year old kid is really good at skateboarding, like freaking amazing.
Skater A:"What he just do, A nollie backside 360 heelflip down a 20 stair?"
Skater B:"Yeah dude, watch out for that kid man cause got the S.S.B.S.T.S lurking.
A term used to talk about girls who wear tight fitting or revealing shirts, when they really don't have the body to match(a.k.a. belly fat protruding). Stands for Bellies That Should not Be Seen.
Watch out for that B.T.S.B.S. up on the right. Be carefull though, she's especially bad and you mightthrow up.