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1.
The dried product on the top of a squeeze bottle or any type of product dispensing container. Ketchup, hair gel, tooth paste, ointment, shave cream....you name it.
The krelm almost entirely useless and is nasty.
by MistahTom April 06, 2006
 
2.
The gunk that gathers on the inside of a Ketchup bottle cap.
Out of Ketchup? Have some krelm.
by Ishkabibil April 06, 2006