To Knife

1. (transitive) To cut with a knife.
2. (transitive) To use a knife to injure or kill by stabbing, slashing, or otherwise using the sharp edge of the knife as a weapon.
3. (intransitive) To cut through as if with a knife.
4. (transitive) To betray, especially in the context of a political slate.
5. (transitive) To positively ignore, especially in order to denigrate. compare cut