Category:Bum

Bum, v. i. [imp. & p. p. Bummed (p. pr. & vb.n. Bumming ( Etym: [See Boom, v. i., to roar.]

Defn: To make murmuring or humming sound. Jamieson.

Bum Bum, n.

Defn: A humming noise. Halliwell.