To perform oral sex, ordinarily fellatio. Pun on the historic British secondary level exam. Twinned with A Levels which are the act of anal sex

Especially used in the escorting world to signify the provider offers fellatio without a condom.

Function: noun
a term for oral sex commonly used in the UK.

Noun - A standardized term for a Secondary level academic qualification of showing the ability to fart, vomit, burp, as well as have the potential for being future Osama bin Ladens.

Adverb - A slang to show extreme anger, distaste or aggression, used commonly by Cambridge people. Refer to fuck

A RPG player that only wants to raise his level, without enjoying the history and other game's features. Also known as upper.