Green’s Dictionary of Slang

1. to snuggle up, to ‘nose in’.

1852

‘Epistle from Joe Muggins’s Dog’ in Era (London) 14 Mar. 3/3: Wee snozzled for the nite wiv Mrs Bail’s ostler, for wee is ould akuintances.

2. (US) to drink.

1919		A. Baer Two & Three 17 June [synd. col.] The old-timer who swizzled, guzzled and snoozled the suds was a weak citizen.
1920		C. Sandburg ‘Home Fires’ Complete Poems (1950) 160: Here the children snozzle at milk bottles, children who have never seen a cow.

3. (US drugs) to inhale cocaine or heroin.

1935

A.J. Pollock Und. Speaks.