want to hurry or rush, hurry up "If we asked Pop to hurry, he'd say, ""Don't get your shirt in a knot!"""
GET YOUR SHIRT IN A KNOT/ GET YOUR SHIT IN A KNOT [B]
Meaning of GET YOUR SHIRT IN A KNOT/ GET YOUR SHIT IN A KNOT [B] in English
English idioms vocab. Словарь английских идиом и выражений. 2012