1.when a mans slacks are too tight and u can see the imprint of his junk.
2.Something to yell in a large crowd than watch ppl look around to see who said it.

3.A mans camel toe.
4.The boy said to his grandmother: "look franks got a humbyjumby" And she passed out.
usually spotted while wearing tight, strechy pants of some sort.
and most commonly found on jumosized individuals.