Chad

[Shatnerfan]

Derivation please. As used at least twice by Joe Pasquale in IAC.

In context I assume it meant bottom. How?

[Octavius]

In the Royal Marines, the phrase Chad Valley is used to describe a piece of equipment the is prone to failure. (??)

I guess JP has his own theory and he must be referring to the ar5e

[natalie_1982]

chad   n   1. a pinch of chewing tobacco. ("Do you want a chad?")  Submitted by Megan Rhode, Minneapolis, MN, USA, 03-12-2002.

Apparently it means that according to an online slang dictionary.

[jocook17]

Natalie, Nads is just short for Gonads ;o)