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1.
Regular marijuana. Usually a dark green color with no crystals and few hairs.
Ask that dude if he got a quarter of some reggos.
by MI WeedMan May 26, 2010
 
2.
Just plain and simply an interesting word for when it is raining.
When it is chucking it down outside we say
''its Reggo =!!''
by shannon&&Melissa December 01, 2007
 
3.
tomato sauce or blood from a grls period
1. Marcia gimmie the reggo for my eggo!

2. Ewww... did Cindy just get reggo on the couch?!
by Greg Brady April 23, 2003