What does GMAO mean?
giggling my ass off
Other definitions of GMAO:
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How to use the term GMAO:
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More slang terms:

PVT
Private

HAXORZ
hackers

187
ashraf Montel ahmed's code which (1) means I, (8) means LOVE and (7) means DAISY?

Dingleberry
Usually refers to feces that were not wiped off properly.