backing up the truck

Verb

back up the truck (third-person singular simple present backs up the truck, present participle backing up the truck, simple past and past participle backed up the truck)

1. (US, idiomatic, informal) To take advantage of favourable pricing by purchasing a large amount.
   • When spreads are very low and contracting, back up the truck and buy equities. When they are high and rising, it's time to hide.2011, David M. Smith, Hany A. Shawky, Institutional Money Management, page 82