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.
can drive a truck through something
AMERICAN, INFORMALIf 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.