giddy aunt 

An expression of shock or suprise

'oh my giddy aunt, she's a fittie'

giddy aunt by Dr CC March 7, 2005

oh my giddy aunt 

oh my giddy aunt is an expression meaning that you are surprised and shocked at the same time and is the perfect way to describe it!

oh my giddy aunt did he just jump off that building

oh my giddy aunt by aysheaa October 18, 2020