Making out is a term of American origin dating back to at least 1949, and is used to refer to kissing, including extended French kissing or heavy kissing of the neck (called necking), or to acts of non-penetrative sex such as heavy petting. Equivalent terms in other dialects include the British English getting off and the Hiberno-English shifting. When performed in a stationary vehicle, it has been euphemistically referred to as parking, coinciding with American car culture.