1 definition by Ragnar 38

Top Definition
SDA
when a runner is struck with a sudden urge to take a massive brick shit during a long run(results can be more violent if sprinting) aka: (sudden dump attack)

Can be treated with a pre-run dump. Not always 100% effective. Symptoms may include ED and explosive diaheria.
oh Goddamn they are banging on the door wanting out. hold in the SDA~!
by Ragnar 38 January 17, 2008
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