Adj- Not being able to tell how much time has passed while under the influence of marijuana.
Peter: Dude did you know how long i was cooking my fish for?

Ian: Nah man, i just smoked, im in weed-speed.
by WrathTheStampede March 30, 2011
When your on the highway going 20 mph and your so high you think your going 80 mph.
Steamboat: i was walking to class but i was on that weed speed so i was 10 min late.

B Willy:stop smoking that bong water
by Squints 2.0 February 26, 2011

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