be (as) strong as an ox
(redirected from am strong as an ox)be (as) strong as an ox
To have great physical strength. (Oxen were traditionally used as work animals.) You should get Bert to help you move all this furniture—he's as strong as an ox. If you go to the gym every day, you too will be strong as an ox.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.