Top Definition
When you want to attack someone in the middle of the night at a sleepover. Ex. With Silly sting, shaving cream, etc.
Last night when my friends slept over, Morgan and I decided to Cough Cough O'clock Adam. We sprayed him with silly string while he was sleeping! It was great.
by alleycat123456 November 30, 2009
5 Words related to Cough Cough O'clock

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