The practice of one, entering another's asshole without consent and stretching out to occupy the most space. The sole purpose being to damage one as much as possible.
Thor: Yo team I totally ant-manned this Asguardian hoe last night.
Tony: Wtf is Ant-manning...?
Ant-man: When you jump in someone's ass and EXPAAAAAAAAAANNNNNND
Tony: .....
Tony: Wtf is Ant-manning...?
Ant-man: When you jump in someone's ass and EXPAAAAAAAAAANNNNNND
Tony: .....
by GIGA-Shippuden March 23, 2019