Top Definition
It is an abbreviation for "swear to god"
U realy Got expelled?
Yea, STG.
by DJ January 25, 2005
Sexually Transmitted Glitter - glitter that rubs on to you during any intimate contact with your partner.
"Last night was awesome, but I got a serious case of STG!"
by Z-Person March 15, 2008
Comes from the one and only Flash. STG is an ultimate compliment that can only be used by the 1 and only Flash Ahhhhh
"STG looks like Flash Ahhhhh"
"Yeah I Know!"
by Mr Flash January 27, 2005
a very intelligent person, espescially good in sciences.
Einstein was STG
by stgsurfer April 27, 2003
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