take the shirt off (one's) back(redirected from took the shirt off their back)
take the shirt off (one's) back
To unscrupulously take large quantities of money from one and cause one hardship. Those contractors will take the shirt off your back if you hire them. I mean, I paid them an exorbitant amount for shoddy work.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.