Top definition
To defecate on ones chest then hammer-punching it in a downward motion, causing it to explode and spread all over the individuals body and face, while breaking ones chest cavity, then immediately running out of the house.
yo i took a shit on that bitch and hammertimed her.

Originally i was going to give her a Cleveland steamer, but then i decided on hammertiming her.

you down on hammertiming?
by HAMMAHTIME February 21, 2013
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