A phrase referring to when someone's whining, grumbling, complaining, etc. The mobile refers to the device often hung over a baby's cradle for their soothing entertainment, as it spins around. Thus, "getting him (the complainer) a mobile" implies he is a cry-baby.
Mr. Truscott had to listen to all of the crying pleas of the physical education student, but then Marly quipped, "Hey, GET HIM A MOBILE" and Kemberling and Herzog were astoundished by this, as was the entire class. The gym student was INSTANTLY SCHOOLED!
by Marly Sauble July 23, 2005