(Internet slang, humorous) Used to tout victory over an opponent, or simply as a humorous catchphrase.

(architecture) A projecting part of a rampart or other fortification. / A well-fortified position; a stronghold or citadel.

(transitive) To furnish with a bastion.

(idiomatic) To be thorough; to prepare thoroughly or completely.

An extremely low bass note that, when played through a subwoofer, physically shakes the listener.

A device, usually a foam block, placed in the corner of a control room or listening room in order to reduce unwanted low-frequency noises.

a large drum with a low pitch

(military) A military airport, providing housing and support for aircraft and personnel.

(US, finish carpentry, interior decorating) A panel or molding between the floor and the interior wall of a structure / (US) A similar panel at the base of a piece of furniture or equipment.

Of reasoning: based on something that is not true, or not based on solid reasons or facts. / Without a physical base.