who's (someone) when (he's/she's/they&

who's (someone) when (he's/she's/they're) at home

humorous Who is that person? Primarily heard in UK. Robert De Niro? Who's he when he's at home? I've never heard of that actress before, who's she when she's at home?

Common Names:

Name	Pronounced	Usage
Tichaona	-	Southern African, Shona
Firdos	-	Arabic
Ranya	-	Arabic
Luis	['luis]
ValentÍN	bah-len-TEEN (Spanish)	Spanish, Slovak
Lennon	LEN-ən	Scottish, English (Rare)