can drive a truck through something

could drive a truck through (something)

Could easily show or exploit the flaws in something. Primarily heard in US. Oh please, I could drive a truck through that lawyer's incoherent argument, and I plan to do just that in court tomorrow.
See also: could, drive, through, truck
Farlex Dictionary of Idioms.

can drive a truck through something

AMERICAN, INFORMAL
If you can drive a truck through something such as an agreement, contract or argument, it has serious weaknesses or faults. In my view, Miller's fiscal plan is so thin you could drive a truck through it. Note: You can also say that something has weaknesses big enough to drive a truck through. Clearly, there were loopholes in the system big enough to drive a truck through.
See also: can, drive, something, through, truck
Collins COBUILD Idioms Dictionary, 3rd ed.
See also:
  • could drive a truck through (something)
  • truck
  • drive a coach and horses through
  • drive a coach and horses through (something)
  • drive a coach and horses through something
  • I wouldn't kick (someone) out of bed for farting
  • I wouldn't throw (someone) out of bed for farting
  • blow a hole in
  • blow a hole in (something)
  • blow a hole in something