The act of placing one's scrotum on the forehead or face of a passed-out/sleeping party go-er; often for photographic purposes. Very similar to a teabag but much safer (if you fear a teabag victim might bite).

This is an example of squaring two consecutive, identical words:

Sleeping Bag² meaning a sleeping bag bag.

ie, the bag a sleeping bag is stored in.

When spoken it is standard to say 'squared' rather than 'to the power of 2' or the traditional long form 'sleeping bag bag'.

Putting such words to a power is a handy method in short hand.

The act of a man strechting his scrotum out flat and wrapping his entire package in it

The act of getting money while you're sleeping

A less explicit way of saying condoms.

At the end of masturbating instead of ejaculating after orgasm into things such as a tissue, stray shirt, floor or stomach you stretch ones foreskin out and ejaculate into the foreskin like a sleeping bag then walk it to the toilet for drop dump.

referring to an uncircumcised penis. Very unsightly and most unfortunate to behold, especially when the tent it is pitching is kiddie sized.