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1. A common response when getting a text from an unknown number. Can be used even if your phone isn't new.
2. Using the above tactic to belittle someone you do, in fact, know.
3. A title of a diss track from an episode of You're The Worst.
"hey i'm in town tonight! let's hit the clubs"
"new phone who dis?"

"i'm pregnant"
"uhhhh...new phone who dis?"

"Did you see last night's You're The Worst? My favorite part was when Sam rapped 'new phone who is.'"
"Such a great scene. We've all been there amirite?"
by suddenvalley January 21, 2016
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2
Slang phrase used on text to avoid conversations with:
1. Someone you owe money to.

2. An Ex lover.
3. Nagging wife.
4. Someone you embarrassed yourself to.
5. Annoying boss.
6. Nagging wife again
Landlord : Have you paid your rent?
Tenant : New phone who dis?
by Laquisha DeeVa January 09, 2018
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