It's the act of blowing you're load into an orifice of your choosing. Then getting down there, creating a seal with your lips, blowing it up like a balloon, and then with any luck with the escape of air a bubble will be blown similar to blowing bubblegum.

It's hard to master but the results are worth it...
Did you hear James tried out the old 'Bangkok bubblegum' with Hannah the other day? Popped right in his face!
by Nthatch September 11, 2023
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