Means when u text or respond to a text too slow , like grandma would knowing she doesn't know what to do with a text mechanism phone.
Whitney: Everytime i text shannon, she always reponds two hours from then !*frowning n frustrated*

Brandi: girl u know she is a grandma texter, she slow as hell!! lol
by Blackcat89 April 28, 2011
Get the Grandma Text mug.