A boobstand is generally defined as the female lies on top of the male, while he is holding the female's shoulders with his hands, and he tittyfucks the female.
Mike: Dude, I totally gave this chick a boobstand last night. It was quite enjoyable.

Josh: Honestly?

Mike: Yeah, FUCK YEAH
by Albert Abagail June 11, 2009
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A girl who has big breasts and uses them lies them onto of a short male friend or kid due to stiff shoulders
Cases like these would probably be in anime....
Boy- "MOVE YOUR BREASTS YOU OLD HAG I'M NOT YOUR BOOBSTAND"
Girl- "Old Hag I'm not even 20 now stay still brat
by Shirokiyami January 29, 2018
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