Famed for being mentioned on the Late Late Show with Craig Ferguson, a Dutch Hat is when your partner wears a toy windmill on their head and you urinate on the windmill causing it to spin.
Traditionally the urinator would wear wooden shoes as to not step in his own urine.
"Jodie, your hair looks greasytoday, didn't you shower?"
"Not since my boyfriend gave me the old Dutch Hat."
A sporting term in the gamecricket term signifying a bowler taking 2 wickets in 2 successive balls. This is a significantly lesser achievement than taking an actual hat trick which is when a bowler takes 3 wickets in 3 successive balls. It is often used tongue-in-cheek to either hype or gently mock the bowling performance. It can be used in other sports or situations where "hat trick" is used but only 2 in-a-row of a thing occurs rather than 3 in-a-row.
John had a successful bowling spell by taking 4 wickets including a Dutch hat trick.