On chugged the motor boat, and soon it was alongside the sailboat.
The Gem chugged her way up "Alligator Brook," as the girls had named it.
Three times they flashed the message, then hurried back to the boat and chugged out, anchoring140 in midstream.
He giggled to himself and chugged his coffee, crouched down below the window.
Thus many a time when it chugged out of his ...