(dated slang, euphemistic, 1920s, African-American Vernacular) To have sex. / To play rock and roll music. / To start, commence, begin, get moving.

A rock at the most westerly tip of the Isles of Scilly facing the Atlantic Ocean and housing a lighthouse; supposedly the smallest island in the world.

(rare, slang, derogatory) Extremely stupid.

(uncountable) In Ireland, a soft drink whose constituents vary regionally, typically made by mixing orange and lemon sodas. / (countable) A glass of this drink.

Pre-hardened plaster of Paris (gypsum) sold in large panels and used as a wall surface in building construction.

plural of rock bun

(music) A genre of rock music associated with short, loud, energetic songs played on electric guitars and drums and employing angry, offensive, and/or political lyrics.

(music) A genre of music which uses rock instrumentation for songs with gradually unfolding structures that depend more on ambience and timbre than melody.

A crustacean of the family Palinuridae.

(idiomatic) The very lowest possible level. / (idiomatic) A period of extreme mental stress, often characterized by being homeless and being rejected by all friends and family.