Green’s Dictionary of Slang

snot v.

1. to hit in the nose [snot n.1 (2)].

[Aus]J. Hibberd Dimboola (2000) 87: dangles: Sit down you poove. darkie: Or we’ll snot you one. knocka: Right between the sockets.
[Aus]R.G. Barrett You Wouldn’t Be Dead for Quids (1989) 108: I wouldn’t mind snottin’ the big goose.
[Aus]R.G. Barrett You Wouldn’t Be Dead for Quids (1989) 154: He started snotting bikies left, right and centre.
[Aus]Bug (Aus.) 29 June [Internet] Snotting loud-mouthed shitheads in nightclubs just before dawn.
[UK]N. Griffiths Stump 63: Don’t say another fuckin word for the next ten minutes, cos I’ll probly fuckin snot yis.

2. to weep.

[US]K. Huff A Steady Rain I ii: She’s snottin’ up the dashboard of my Plymouth the whole way.