Green’s Dictionary of Slang

Dodge n.

In phrases

get the hell out of Dodge (v.) (also get out of Dodge, get the heck out of Dodge, get the fuck...) [the clichéd dialogue of a variety of Western films/TV series in which the ‘baddie’ is ordered, Get the hell...]

[1960s+] to leave, usu. at speed; thus as imper. get the hell out of Dodge! go away now!