snog
From Longman Dictionary of Contemporary Englishsnogsnog /snɒɡ $ snɑːɡ/ verb (snogged, snogging) [intransitive, transitive] British English informalKISS if two people snog, they kiss each other, especially for a long time I saw them snogging in the corner. —snog noun [countable usually singular]→ See Verb table