i was on crack

the phrase "i was on crack" is a quick yet poor excuse for doing something stupid or retarded.
the phrase can also be used humorously with friends to play off something minor that will not bring the fbi into the picture.

fbi: will we find any sexually explicit images of children on your pc edp445?

edp: nah offica, i ain't sick like dat.
fbi: *opens up lolicon folder* "sir why is there lolicon on your pc?
edp: *shits out cupcake* "uhhh i was on crack when i downloaded that"

friend: john why did throw your hamburger at an elderly woman?
john: oh yeah, i was on crack
friend: oh ok.

can i crack

another way of saying can i smash

dam bruh u fine, can i crack