What does STO mean?

Sticking Out Tongue

STO

Other definitions of STO:

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How to use the term STO:

There are no example uses of STO at this time. We would greatly appreciate your contribution if you would like to submit your own!


More slang terms:

FTASB

FTASB

Faster Than A Speeding Bullet

KMWA

KMWA

Kiss My White Ass

JAFS

JAFS

Just A Fucking Salesman

FOTB

FOTB

Fresh Off The Boat