-the art of sticking your finger into your anus, then pulling it out (hopefully your finger is covered with shat butter) and then wiping it under or within another person's nose.
Wow, that cheefer that you gave her was so grimy !
person that smokes too much weed/ciggaretes (it dont matter)
person 1: nigga im call u cheefer
person 2: why?
person 1: cuz evry time i turn aroun i see you smokin