SE in slang uses
to take a large mouthful of one’s drink.
[20C+] (Aus.) to eat a meal for which someone else has paid.
[20C+] (Aus./US black) to speak with absolute candour, honesty.
1. [mid-19C–1950s] a phr. used when one stands a round of drinks and asks the company what they would like.
2. [1990s+] (US black) a general phr. of affirmation.
[1910s+] to be destined or intended for someone; orig. of a bullet.
[19C] the vagina.
[1910s+] the most important aspect of a situation, whatever matters most, the end, the finish.
[1950s+] (UK Und.) to inform against someone, often to save one’s own skin.
[1990s+] (US teen) an excl. used to intimidate or used for celebration.