Chilling (as in 'hanging around' and 'looking cool') and grilling (as in 'grilling burgers') at the same time.
Frequently happens at parties and barbeques.
Involves grilling a burger and looking relaxed/being cool.
Pretending to crill. Looking like you are grilling/flipping a burger and pulling a face in an attempt to look cool.
'Are you making burgers?' 'No, I'm just crilling.'