look up any word, like the eiffel tower:
 
1.
when a person constantly texts you and nothing will stop them, just like how a serial killer constantly kills and nothing will stop them.
"Hey Amanda did Cheerios text you today?"

"Of course, he is a serial texter, always striking, nothing will stop him."
by kimbolesbo1 July 18, 2010
 
2.
One who incessantly uses the text feature on a cell phone to send text messages to an individual or a group advising the recipient(s) of their most mundane accomplishments.
Dude, Maggie the "serial texter" just sent me a message that she got her haircut; what's next, a text that she just dropped a deuce ?
by AlJP May 30, 2007