Elbow  —n. 1 a joint between the forearm and the upper arm. B part of a sleeve covering the elbow. 2 elbow-shaped bend etc. —v. (foll. By in, out, aside, etc.) 1 jostle or thrust (a person or oneself). 2 make (one's way) thus.  give a person the elbow colloq. Dismiss or reject a person.  [old english: related to *ell, *bow1]