eat someone alive

eat someone alive

Overwhelm or defeat someone thoroughly, make short work of someone. For example, Lacking experience in manufacturing, he was eaten alive by his competitors. This slangy hyperbole dates from the early 1900s. A newer slangy variant is eat someone's lunch, dating from the mid-1900s. For example, It was a decisive victory; he ate the incumbent's lunch.
See also: alive, eat