breast_grab is for grabbing another character's breasts.
breast_hold is for holding a character's own breasts.
(Originally decided in forum #167541.)

breast_squeeze does not necessarily imply breast_grab (example post #1863475) and should not implicate it.

Further reading:
forum #237447 - unimplicate breast_squeeze -> breast_grab or breast_grab -> hand_on_breast
forum #208346 - De-implicate breast_grab -> hand_on_breast
forum #171567 - Tag Implication: breast_grab -> hand_on_breast
forum #107011 - Tag Implication: breast_squeeze -> breast_grab

-1 breast_squeeze is for when something/somebody has hold of one or more titties, and is giving them a squeeze...which you can't do unless you have first grabbed the titty/titties.

Please read forum posts in full before offering your opinion. Like I said, _grab and _hold have specific meanings on e6, and breast_squeeze can result from breast_hold which is not breast_grab. Therefore the implication should be removed.