Uncles new suit
Fella takes his elderly uncle to be measured for a suit, the old guy's in his seventies and never had a made-to-measure suit in his life.
The tailor measures him for the jacket then moves down to measure him for the trousers, he's taking the old guy's inside leg measurement and asks him what side he dresses on, the old guy turns to his nephew and asks, . . "what does he mean by that", . . . the nephew replies, . . "he wants to know which side your bits hang so he can make allowances for the bulge", . . the old guy turns round and says, . . "just make them baggy at the knees son".