cheese eater
noun
,
Slang.
1.
an informer; rat.
2.
a person who betrays, denies, or abandons his or her associates, social group, beliefs, etc.
Slang definitions & phrases for
cheese eater
cheese eater
noun phrase
(also cheese eater, cheesy rider) An informer or other despicable person;
rat
(1940s+)