beer can grenade noun a crude hand grenade fashioned by the Viet Cong, packed inside a beer can US
— Gregory Clark, WordsoftheVietnamWar, p. 53, 1990
On the walk along deserted Grave Street toward the company, Moytz attacked Baker Company’s dumpster with a beer can grenade. — William Singley, Bragg, p. 178, 2006