oh girl

An expression of delight and joy, or, sarcastically, dismay, resignation, frustration, or annoyance.

Japanese Meaning

（喜びを表す場合）歓喜や嬉しさ、興奮の感情を表現するために使われる表現 / （皮肉を込めた場合）失望、諦め、苛立ち、または不快感を示すために使われる表現

oh girl, that dress looks stunning on you.

あらまあ、そのドレスは本当にあなたに似合っているわ。

Sense（1）

An expression of delight and joy, or, sarcastically, dismay, resignation, frustration, or annoyance.

Oh, girl! I can't wait to tell my friends about this!