1. rule or domination by a the person with the largest boobs.
2. a political system, state, etc. dominated by the person with the largest boobs.
3. a way of determining order by the size of the boobs of the participants.
Alice: So, who gets to go first ?
Blair: Definitely me, by right of boobalism.
Alice: Huh ?
Blair: My boobs are way bigger than yours Alice.
Alice: ...
Breasts that exist on a fully developed female, that are incapable of being termed as 'boobs' due to their lack of volume, and their incapability to be used as leverage during coitus.