Green’s Dictionary of Slang

wear n.

[the two mouths are so entwined that it appears that one is ‘wearing’ the other]

(Irish) an open-mouthed kiss; thus the person who gives one.

Show quotations
[Ire]B. Geldof Is That It? 37: You could get a ‘wear’, a kiss with open mouth.
[Ire]F. Mac Anna Last of the High Kings n.p.: What’dye get? What d’ye get? they asked each other afterwards. Just a wear, Frankie lied .
[Ire]P. Howard Miseducation of Ross O’Carroll-Kelly (2004) 87: I end up throwing the lips on her [...] and it has to be said, she’s a pretty amazing wear.