Green’s Dictionary of Slang

chocks away! excl.

also pull chocks!
[the chocks, orig. wood, that were positioned as ‘brakes’ next to aircraft wheels]

(orig. RAF) let’s go! let’s be off!

Show quotations
[NZ]G. Slatter Gun in My Hand 197: Wizard show. Chocks away. Here we go, old boy.
[Ire](con. 1945) S. McAughtry Touch and Go 227: Chocks away, Hughie.
Online Sl. Dict. 🌐 pull chocks v 1. to leave. Etymology: chocks are wedges used to prevent anything with wheels (e.g. airplanes, tractors, etc.) from moving. ‘Pulling the chocks’ allows the vehicle to proceed. (‘Let’s pull chocks, this place struggles.’).
[UK]Indep. Traveller 4 Mar. 11: Chocks away! From hell to pure heaven in 45 minutes.