ok bob, we were talking about the football game before you caterpillared to the subject of what color you painted your living room, back on topic
when someone is talking about one subject and then because of a rogue add thought in their head completely changes topics to the dismay of the others in the conversation
"ok bob, we were talking about the football game before you caterpillared to the subject of what color you painted your living room, back on topic" What is the definition of "caterpillared"?