can (do something) on (one's) ear(redirected from can on their ears)
can (do something) on (one's) ear
slang Can do or complete something effortlessly. Primarily heard in Australia. Here, let me fix that hole in your dress—with my new sewing machine, I can sew on my ear now.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.