The Collaborative International Dictionary of English v.0.48:

Buss \Buss\ (b[u^]s), v. t. [imp. & p. p. Bussed (b[u^]st); p.
   pr. & vb. n. Bussing.]
   To kiss; esp. to kiss with a smack, or rudely. "Nor bussed
   the milking maid." --Tennyson.
   [1913 Webster]

         Kissing and bussing differ both in this,
         We buss our wantons, but our wives we kiss. --Herrick.
   [1913 Webster]