English Dictionary

Mack truck

noun

A motor vehicle produced by Mack Trucks, especially a semi-trailer. / A semi-trailer of any brand. / (figuratively) Any unstoppable or enormous thing coming through.

I saw a Mack truck on the highway.

意味（1）

A motor vehicle produced by Mack Trucks, especially a semi-trailer.

their hearts were too small to pump blood to their huge bodies. It was like trying to run a Mack truck on a Volkswagen engine, and their hearts gave out.

意味（2）

A semi-trailer of any brand.

Abuses committed by overly aggressive states have resulted in federal rules and paperwork motivated by the fear that without rules and record-keeping requirements, states would show up at the Treasury with a Mack truck to take away all the cash they could.

意味（3）

(figuratively) Any unstoppable or enormous thing coming through.

Mary swept through the board meeting like a Mack truck.