1. The person is using a phone to type instead of a
computer, as an excuse for typing slowly or typing with horrible
grammar. Commonly
used angrily and/or childishly.
2. The person is using a phone and wants you to getaway.
1. "You type really slow," I typed. "Im on a phone
dumbass," they replied.
2. "My
kid needs milk," I said. "Im on a phone
dumbass," they replied, putting their phone up to my face.