Green’s Dictionary of Slang

heel v.1

[SE heel]

1. [mid-19C+] (US, also heel it, heel out) to run away, to escape, to walk quickly.

2. [1900s–30s] (US Und.) to walk stealthily, to stalk, to follow.

3. [1940s–60s] (US Und.) to leave without paying one’s bill.

In phrases

cop a heel (v.)

1. [1920s+] (US Und.) to run off, to escape; thus cop and heel n. (see cit. 1960).

2. [1930s–50s] (US prison) to attack from behind.

heel it (v.)

see sense 1 above.

heel on (v.)

see separate entry.

heel out (v.)

see sense 1 above.