1 definition by brynster48

Top Definition
When someone is sitting in class so that they block your view of the clock. You can't check the time without leaning over conspicuously and the teacher noticing
Bryn: Dude that guy was totally clock blocking me, Mr. Richards noticed me looking at the time and kept us for another five minutes.

Oliver: Man I hate clock blockers
by brynster48 January 15, 2010
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