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The activities or behavior of a bird (a girl) that’s sneaky, shitty, bitchy, or all of the above. Usually this behavior is seen in a pick me girl.
Girl 1: Jess was flirting with everyone’s boyfriend last night. And she KNOWS none of them are single.

Girl 2: Bird activity.
by IThinkIKnowWhatImTalkingAbout January 19, 2021
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May 12 Word of the Day
When someone goes to the gym and spends 90% of the time on their phones scrolling through social media
Looks like its thumb day again for Jimmy with his usual routing... 3 sets of 5 snapchat selfies and 10 sets of scrolling through facebook until exhaustion
by Gary br April 02, 2017
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2
The activity of a bird (a girl) that’s sneaky, shitty, bitchy, or all of the above.
Girl 1: Jess was tryna get at everyone’s boyfriend last night. And she KNOWS none of them are single.

Girl 2: Bird activity.
by IThinkIKnowWhatImTalkingAbout January 19, 2021
Get a Bird Activity mug for your bunkmate Callisto.