Douglas Harper's Etymology Dictionary
Usage examples of "hand-grenade".
Some of them even chucked hand-grenades in the path of our Bren gun-carriers, from the woods through which we were passing, and we began to think that it wasn't quite the sort of war that we had bargained for.
Now, if he did know, hed be able to swot up on that side of things and get ready to catch all the hand-grenades they lobbed at him.