Hobnob \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.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Hobnob \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.

Source: Webster's Revised Unabridged Dictionary (1913)
 

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

Source: Webster's Revised Unabridged Dictionary (1913)