Green’s Dictionary of Slang

razor-legged adj.

(US black) duplicitous.

[US]Murtagh & Harris Who Live In Shadow (1960) 53: What razor-legged obscenity went and turned me in?
[US]R.D. Pharr S.R.O. (1998) 14: It’s the most humiliating thing [...] to be told by a razor-legged woman that your services are no longer required.