rock up

verb — 3 senses

verb

Etymology From rock + up.

Informal To turn up at a place or function spontaneously or unexpectedly, without notice or prior warning.

I'm sure the Brunel-designed stone-built structure would have had a hatstand for his trademark stovepipe. I can picture him rocking up there of a morning and lobbing it nonchalantly onto the hatstand.2021 December 29, Stephen Roberts, “Stories and facts behind railway plaques: Chippenham (1841)”, in RAIL, number 947, page 57:

verb

Etymology From rock (“stone”) + up.

Climbing, Hobbies, Lifestyle, Sports To work one's way vertically up a chimney or cleft using a rocking movement.

Drugs, Medicine, Pharmacology, Sciences Slang To turn powder cocaine into crack cocaine by cooking.

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.