Used as a term to express frustration, annoyance or mild anger at something, somewhat similar to "For Fuck Sake". Can also be abbreviated in short messages in a similar way and it is not uncommon to see the acronym CKFM. When pronouncing, the emphasis is placed on the word 'fucking'.
The Phrase originated in Cranbourne School, Basingstoke (UK) in the mid 1990's where Clive Kents mum would give gob jobs to the boys for a can of Strongbow cider. Since then the phrase has spread and entered the lexicon of most of Hampshire (UK) and has also spread to areas of Leicester and Leicestershire (UK).
The Phrase originated in Cranbourne School, Basingstoke (UK) in the mid 1990's where Clive Kents mum would give gob jobs to the boys for a can of Strongbow cider. Since then the phrase has spread and entered the lexicon of most of Hampshire (UK) and has also spread to areas of Leicester and Leicestershire (UK).
Bob - *Knocks a glass of water on the floor*
Bob - Clive Kent's Fucking Mum!
Message example:
Bob - "my missus came home early and caught me at it"
Steve - "CKFM, why did she have to do that?"
Bob - Clive Kent's Fucking Mum!
Message example:
Bob - "my missus came home early and caught me at it"
Steve - "CKFM, why did she have to do that?"
by Sabi Gunter May 17, 2025
Get the Clive Kent's Fucking Mummug. 
by lecar December 6, 2021
Get the mummug. by Ur_mum_gay1 October 31, 2021
Get the Ur mummug. Any sentence that has to do with “ur mum” indicates that the person who said that is either homosexual or is seeking a sexual partner who is the same sex.
by Asian Daddy Slayer April 16, 2022
Get the ur mummug. 
An exquisite comeback to any wrekc roast, or burn. This comeback can also be followed up with something else.
by Ya nan gay June 21, 2021
Get the Ya mummug.