I’d have to say I wasn’t familiar with the term, as defined, in 11a , and its not in Chambers, Collins or ODE with that definition. I read the earliest use is attributed to Jimmy Durante.
Jono re 11a I've noticed Everyman does throw in hardcore Americanisms every now and again. Can only presume he lived there for a while as I can't believe anyone on this side of the Pond has ever used this particular one.