3 Munf is an expression that can be commonly used among schoolboys alike, can be used as a way of showing anger or frustration, it can also be used as a derogatory term, similar to wanker or twat, but its mainly for scruffy people with a buzzcut and short blonde people. Can be derogatory if used in the wrong way, an exemplar being "You 3 munf twat". This would be the equivalent of calling someone a "Twat"
"Hey, you scruffy 3 munf.'
or
Say you drop a glass dish and it smashed, you could shout "3 MUNF", everyone would understand that its used in the way to express anger.
An often handsome, well mannered and well-spoken person of Yiddish Decent. Characterized by their Thriftiness, Munfredos often posses a larger than average nose, and ruggedly handsome features. Munfredos are known to possess a large following of female admirers.
And dying in yo' bed many years from now, would ya be willing ta trade all da days from dis here day ta dat fo' one chance, just one chance, ta come back here as young men an' tell our enemies dat dey may take our lives but dey will never take our freedom ... YUB NUB!