Green’s Dictionary of Slang

burger n.

1. (US campus, also double burger, triple burger (with cheese)) a sexy/very sexy/very, very sexy woman [she’s ‘very good to eat’; a savoury version of the usual identification of pretty women with sweetmeats or cakes].

[US]Eble Campus Sl. Mar. 2: burger – noun rating the relative attractiveness of a girl, for example, a double burger is very attractive, and a triple burger looks even better: Whew, baby! I just saw a triple burger with cheese!
[US]Eble Sl. and Sociability 123: Picturing the attractiveness of a female in fast-food terms like burger, double burger, and triple burger with cheese allows a male the anonymity and lack of interpersonal involvement associated with eating at such establishments.

2. (UK drugs) a variety of MDMA.

[UK]H. Kureishi Black Album 163: [H]e gave a guided tour of his life and work in drugs, beginning with the dazzling Es he'd had recently and [...] whether they were burgers or caps, and how they were made, imported and marketed.

3. (N.Z.) the vagina.

[NZ] McGill Reed Dict. of N.Z. Sl.

SE in slang uses

In compounds

In phrases

burgers and dogs (n.)

(US) coded phrase used by bars to attract fans of bondage and discipline.

[US]Murray & Murrell Lang. Sadomasochism 46: Burgers and Dogs [...] Bondage and discipline (Burgers and dogs is a code phrase some bars use to signal potential patrons that people interested in bondage and discipline frequent the establishment. The phrase typically occurs on a sign outside the bar, and in no way relfects any menu of edible items) .