get (your) knickers in a twist

British & Australian, informal, Australian, informal

to become very upset about something, usually something that is not important.

Now, before you get your knickers in a twist, let me explain the situation.

• be built like a brick shithouse
• be built like a tank
• be built on sand
• be bulging at the seams
• be bumping along the bottom
• be burnt to a crisp
• be bursting at the seams
• be called to account
• be carried out feet first
• be carved in stone
• be cast in a different mould
• be cast in the same mould
• be caught in the crossfire
• be caught in the middle
• send out something
• send packing
• send round the bend
• send round the twist
• send shivers down someone's spine
• send shivers down spine
• send shivers down your spine
• send shivers up someone's spine
• send shivers up spine
• send someone away with a flea in ear
• send someone away with a flea in their ear