1: The word that Americans that have travelled around the word use for the word "grain". Other words they suck at saying include "great", "grab", "greed", "group", etc.
2: A musical peice that very few people know about.
A kgrind is where you rub your face in a girls breasts so hard your nose starts hurting. The term dates back to a man who is almost legendary in Cambridgeshire who's first name is korben who was pretty infamous for his love of motorboating.
Guy 1: How was your date last nightbro?
Guy2: Really fun man got a bad case of kgrind though.
Guy1: Must have been a special girl then dude