Green’s Dictionary of Slang

to jostle against, to knock.

c.1786		Grose Classical Dict. of the Vulgar Tongue ms. additions .
1788, 1796		Grose Classical Dict. of the Vulgar Tongue (2nd, 3rd edn).
1975		(con. 1930s) Durocher & Linn Nice Guys Finish Last 90: The next guy that bunts on me [...] I’m going to bounce one off his noggin.
1986		S. King It (1987) 920: He bunted her with one meaty hip and almost knocked her sprawling.