rat bastard
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
A thoroughly despicable and untrustworthy person; a scoundrel.
Register: derogatory, slang
Where it’s used:
Used
American English
Examples
'He's a rat bastard,' Flame declared. 'We don't know for certain,' Gator pointed out. 'And for the record, have you ever referred to me as a rat bastard?' 'Yes, several times, but in a different way. He's a slimeball rat bastard. You're just a plain old garden variety man-type rat bastard.'
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “rat bastard” mean?
A thoroughly despicable and untrustworthy person; a scoundrel.
Is “rat bastard” formal or informal?
rat bastard is generally derogatory, slang.