yeah ive heard that before. i think it means pull up your pants or dont be so full of yourself or something like that. im pretty sure its the first one though but dont quote me on it
Pants
Mutt means dog, esp. a mongrel. But it can also mean a person regarded as stupid or incompetent. So you could say '' Look at that mutt'' or ''Hey mutt'' or ''You mutt''
"you farted."
Britches, or breeches, are pants used in riding horses. Meaning hold onto your pants. Can also mean the same thing as "hold your horses"
Little Britches was created in 1950.
witches britches
The term "light in the britches" is a metaphorical expression meaning someone who is lacking in intelligence or common sense. It suggests that the person is not very bright or clever.
In Britain I just discovered it is a slang term for admiring a wife or mistress.
MUTT
Mutt the Mutt Trainer - 1919 was released on: USA: 6 April 1919
The phrase "the seat of your britches" refers to the area of your pants that covers your buttocks. It is often used in expressions like "get off your seat of your britches," meaning to stop being idle and take action. The term can also imply a sense of comfort or being settled in one's position or situation. Overall, it conveys a sense of physical presence and readiness for activity.
Her EX-Husband's name is Mutt Lange. and he is mean Current husband is Frederic Thiebaud. He happens to be the ex-husband of the (ahem) less-than-drop-dead-gorgeous gal that Mutt committed adultery with.