how about that?

Isn't that surprising, remarkable, or pleasing. For example, They're engaged-how about that? [Colloquial; first half of 1900s]

Name	Pronounced	Usage
Yasmine	YAZ-min (English)	Persian, Arabic, English (Modern)
Rodolfo	-	Italian, Spanish, Portuguese
Erica	['erikə]
Rayen	-	Native American, Mapuche, Spanish (Latin American)
Girish	-	Indian, Hindi, Marathi, Kannada, Malayalam
ÉMile	e-MEEL	French