for 'tongue-kiss'. 'Tonguey' can refer to clumsy or inept use of the tongue in kissing, caused by inexperience, alcohol
or both; or be used by onlookers to describe even a mildy intimate kiss
('...so he lays this big tonguey on her...'). Often used in a joking manner: 'Go on, Aunty Flo - give 'im a big tonguey, that'll sort 'im out!'. Even dogs can give tongueys.
Not to be confused with the US 'porno tongue'.