Green’s Dictionary of Slang

squat v.

1. [mid-19C+] (US, also squat the blot) to sit down, usu. to do nothing is implied.

2. [1930s–40s] (US prison) to be executed in the electric chair; to execute.

3. [1960s] (US) to defecate.

In compounds

squat house (n.)

a lavatory.

In phrases

squat hot (v.) [hot squat at hot seat n. (1)]

[1940s] (US) to be executed in the electric chair.

squat on (v.)

[late 19C] (US) to oppose.