The Collaborative International Dictionary
Wag-halter
Wag-halter \Wag"-hal`ter\, n. [Wag + halter.] One who moves or wears a halter; one likely to be hanged.
I can tell you, I am a mad wag-halter.
--Marston.
Wiktionary
wag-halter
n. (context obsolete colloquial English) One who moves or wears a halter; one likely to be hanged.