bill up

== English == === Etymology === From a pronunciation spelling of build. === Verb === bill up (third-person singular simple present bills up, present participle billing up, simple past and past participle billed up) (ambitransitive, UK, slang) To roll up a marijuana cigarette. Synonyms: bill, skin up === Further reading === “bill (up) v.”, in Green’s Dictionary of Slang, Jonathon Green, 2016–present