a crustup is when you leave your food on the table without eating it for hours and it goes dry and crispy.
Works well on potato and cheese.
ah! mum, there's been a crustup, my potato and cheese have gone crispy
Prices shown in USD.
Type your email address below to get our free Urban Word of the Day every morning!
Emails are sent from email@example.com. We'll never spam you.