1. [mid-19C+] (also do a skate, skate off, skeet, skeete, skite) to rush off, to leave at speed, to go quickly.
2. [1940s+] (orig. US black) to get away with anything, to shirk one’s responsibilities, esp. to avoid paying one’s debts.
3. [1960s+] to perform or make something, e.g. an essay or a meal, quickly.
4. [2000s] (US prison) to be in a forbidden area of the prison.
[1910s] (US) one who runs off (and escapes paying a bill).
[1970s+] to take advantage of.
see sense 1 above.