膝おっぱい
Pressing your knees to your chest to pretend you have boobs. Usually a [[parody]] of a scene from [[Onee-chan no Te wo Totte]] in which the main character, [[yumi_(onee-chan_no_te_wo_totte)|Yumi]], does this (post #70972).

h4. See also

* [[breast conscious]]
* [[Tag group:Meme]]
knee boobs