1978 30 July 22/3 (advt.) Ginsu knife set... Imagine! The Ginsu is so sharp it can cut through a tin can, and then cut a tomato smoothly and cleanly.
1985 17 June 5 But wait - there's more, as they say in the Ginsu knife commercials.
2003 A. Greenwald i. ii. 20 A sentiment that would have seemed sanitized in other throats cuts through the song like a Ginsu through a tin can.