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when one cant be fucked to the point where they dont even say "cant be fucked". their lazyness devellops the "can not be fucked" expression to "canny b fucked" and then just to "canny b".
sharts: are u goin to the gym today man?
jarrod: nah man i got a serious case of canny b
sharts: what do u mean man?
jarrod: i canny be fooked.

student 1: dude where the fuck is jonno today
student 2: aw man that dog always canny bs when it comes to school
by lazy eye March 04, 2009
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