When you're drunk/high, and run off the road and end up in a field your giggling instead of the normal reaction of freaking out.
Person 1 "Due i saw ted in the feild next door"

Person 2"really what was he doing"

Person 1"...he was just enjoying the giggle weeds"
by two.funny.girls March 31, 2010
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Mark gave Tim some of that giggle weed and he ate the whole bag of sweet snacks.
by Digger September 29, 2005
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