'to come out sideways'?

[Mehrgan]

Hi,

I do realise I need to provide the right context, but this is just the thing I have access to. I thought this may mean something, even out of context, and if it doesn't, I'm so sorry for taking your time!

'...I knew I was in for it the moment you came out sideways!'

 

[Rover_KE]

This was a new one on me, but the Urban Dictionary has the answer.