The Crabfish is a ribald humorous folk song of the English oral tradition. It dates back to the seventeenth century, appearing in Bishop Percy's Folio Manuscript as a song named "The Sea Crabb" based on an earlier tale. It has a Roud Folk Song Index number of 149. The moral of the story is that one should look in the chamber pot before using it.
A man brings a crabfish (most likely a common lobster) home as a gift for his wife and puts it in the chamber pot. Some time in the night his wife answers a call of nature and the crustacean grabs her private parts. In the ensuing scuffle the husband gets bitten too.
"Johnny Daddlum" is the Irish version of this song. There are variants in which the coarse language is more clear-cut than in others. In some variants the wife is pregnant, having previously told her husband about her craving to eat crabfish meat. This song has also variants under other names such as "Old She-Crab", "The Crayfish", "A Combat Between an Ale-Wife and a Sea Crab", "The Fishy Crab" and "The Lobster".
A sanitized version of 'The Crabfish' expunging the straightforwardness of the original in order to make the song available for child audiences was released in recent years. Instead of private parts the crabfish grabs the wife by the nose and the husband by the ear.
- Bishop Percy's folio manuscript: loose and humorous songs ed. Frederick J. Furnivall. London, 1868
- Lyr Req: Mr Radalum? / Raddle-um / Crabfish etc.
- Memorial University Folklore Archive Song Title Index – The Crabfish
- Johnny Daddlum
- Old She-Crab
- The Crayfish
- A Combat Between an Ale-Wife and a Sea Crab
- The Lobster Song
- The Crabfish (First Steps in Music series)
- The Crabfish - Brookwood Elementary
- Salty Dick's Uncensored Sailor Songs, "The Crabfish", archived from the original on 2012-12-11, retrieved 2014-06-08
- Dan and Bonnie Milner sing "The Crabfish" at the 2009 Chicago Maritime Festival
- Tom Chapin sings "The Crabfish Song" (children version)