Japanese slang: When a fully clothed man has an erection, his friends may laugh, and some may call his organ a "tentomushi" (tent bug); others may also ask the below example with their tongue in their cheek.
some1 who u just met, for the first time that day, and u catch him pitchin a tent, and sometimes is a complete lying bastard who will say 1 thing, then completely go behind ur back and do it.
yo man hows i.t..... dude... wtf, do i turn u on? tent?
By Winonah
Tenting
When the erect penis causes containing fabrics such as underwear or bedsheets to be raised in a tent-like shape.