Intentionally cranking up game difficulty way up while intentionally giving yourself terrible stats. As an example, I do this in Mariokart 8, giving myself some dumbass Morton combo while having only blueshells + bloopers enabled. Crack Mode at its finest.
Jimothy: you wanna play some mariokart 8?
Ed: How about Crack Mode?
Jimothy: HELL YEAH
A video (usually of sports cars) that is edited to be fast paced and overstimulating. Rapid cuts, electronic/phonk music, and captivating masking transitions edited to the beat.
"Chuck was up all night making a crack edit of a shopping cart"
A lightly colored chair that has been sat on by a person, typically obese, who has an unwiped plumber's crack sticking out of their pants. When said chair is sat on for a long period of time by them, they leave behind a linear streak of shit "painted" onto the chair, easily visible thanks to its light color.
Dude those folding chairs have all become crack canvases after the Warhammer 40k tournament! I feel bad for whoever has to clean that up