To use one's scrotal sack to stir another's beverage. (Preferably in an anticlockwise direction).

Also see reading the tea leaves
"Oh mate, you were so drunk last night you 'stirred the teabag' in that chicks drink".

Or

"I was stirring the teabag in that mojito so long last night my balls are numb"
by Ardet Malious November 6, 2017
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