surprise

opening of an envelope: Idiom Meaning and Origin

on stun: Idiom Meaning and Origin

one’s socks off: Idiom Meaning and Origin

oh my gosh: Idiom Meaning and Origin

oh my: Idiom Meaning and Origin

more than one bargained for: Idiom Meaning and Origin

make someone’s jaw drop: Idiom Meaning and Origin

knock the stuffing out of: Idiom Meaning and Origin

knock someone’s socks off: Idiom Meaning and Origin

knock someone over with a feather: Idiom Meaning and Origin

jump out: Idiom Meaning and Origin

Jesus, Mary and Joseph: Idiom Meaning and Origin