go to the mat (for (someone/something))

to support someone or something very strongly.

When he believes in a project, he's willing to go to the mat for it.

• could do something in sleep
• could do something in their sleep
• could do something standing on head
• could do something standing on your head
• could do something with eyes closed
• could do something with eyes shut
• could do something with one arm tied behind back
• could do something with one arm tied behind their back
• could do something with one hand tied behind back
• could do something with one hand tied behind their back
• could do something with their eyes closed
• could do something with their eyes shut
• could do with
• could do with one arm tied behind back
• could do with one arm tied behind their back
• could do with one hand tied behind back
• could do with one hand tied behind their back
• could do with something
• could hear a pin drop
• could in sleep
• could in their sleep
• couldn't [act/argue/fight] way out of a paper bag
• couldn't [act/argue/fight] your way out of a paper bag
• couldn't act way out of a paper bag
• couldn't act your way out of a paper bag