G. Milburn No More Trumpets 29: Heavy used to put the bug on me [...] The bug is what they call the blister beetle, a sort of a little bug. The juice of it blisters to beat hell. [...] The next day when I went into town to batter backdoors, why I could show the woman that opened the door the sores on my arms.at put the bug on (v.) under bug, n.4