Same sound, opposite meaning

[sagehen]

 *Squat* seems to be another Janus word.  I always thought of it and
*diddly* & *diddly squat* as meaning /nothing/  or /less-than-nothing/, but
kept encountering them in contexts where /anything/  was clearly intended.
Looked up *squat* in the Oxford Dict. of Mod. Slang (no entry for *diddly*)
and found _both_ meanings given.  "Didn't do diddly squat for us" still
sounds like a double negative to me.
A. Murie
(--or maybe triple!)