You literally just make a sound with your tongue as if your licking something but you also have to suck air in at the same time and it means “shut up/ leave me alone I’m doing something”
*lick while making sound*-logan| omg no stop speaking Logies Language - tara
In Anthony Burgess's novella, A Clockwork Orange, it's the "nadsat" slang version of saying you're sorry. Synonymous with "apologies" as in "my apologies".