1 definition by ultramarathonman

Top Definition
1. To prevent a male friend or associate from running a mud run, relay or individual race.

2. Any such attempt to prevent a male friend or associate from running
1. Damn, My wife just totally runblocked me this AM. Now I have to go to the zoo with the kids.

2. I would have run the race on Sunday but the runblock my husband put on me prevented it from happening. Bastard!
by ultramarathonman September 17, 2012

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