A word used commonly in a lot of part's of Ireland and certain part's of England.
Mean's french kiss/tongue/make-out ,
very common at teenage disco's , generally very casual, just because you meet someone doesn't mean you're in a relationship with them.
Met- Past tense of meet , already happened. 'Yeah , I met him last night'
Meet- 'Omg, you really gonna meet him?!'
On the meet- The time from when you agreed to meet them to the time when you actually do , during that period of time you're 'on the meet' with them, 'I'm on the meet with Adam.. '