A brutal shoulder charge in Australian rules football (AFL) where a player instead of tackling an opponent, bumps them forcefully in the chest. Often leads to heavy concussions due to incidental contact to the head.

A pick me is a woman that is willing to do anything for male approval. She will embarrass or throw other women under the bus to achieve this goal. The unfortunate thing about a pick me is usually the men they are trying to seek approval from are of poor quality and treat women badly, leaving little real benefit for the pick me.

A shirtfront, an Australian rules football term, is a "head-on charge aimed at bumping an opponent to the ground"

Literal: To shoulder charge an opposing player (Australian Rules Football) in the chest/abdomen at full pace with the intent of injuring the player.
Figurative: To confront someone aggressively. To get right up in someone's face and lose your shit.