Hob"nob` (?), adv. [AS. habban to have + habban to have not; ne not + habban to have. See Have, and cf. Habnab.] 1. Have or have not; -- a familiar invitation to reciprocal drinking. Shak.

2. At random; hit or miss. (Obs.) Holinshed.

Hob"nob`, v. i. [imp. & p. p. Hornobbed (?); p. pr. & vb. n. Hornobbing.] 1. To drink familiarly (with another). [ Written also hob-a-nob.]

2. To associate familiarly; to be on intimate terms.

Hob"nob`, n. Familiar, social intercourse. W. Black.

• An informal chat.
       The three friends had a hobnob outside the bar.
  
• To associate in a friendly manner with. Generally has a connotation of associating with people of a higher class or status.
       The ambitious young student hobnobbed with the faculty at the prestigious college he hoped to attend.
  
• To drink together.