I'm not quite sure how it got started, but at one point in the chat, we made the call for NASCAR-themed "Yo momma"s, and oh, did the chatters respond. Here's what you're missing if you're not tuned into us on Sundays ... for better or worse:
"Yo momma so fat she needs both grooves!"
"Yo momma so fat, Kyle Busch couln't put her into the wall!"
"Yo momma's so ugly, Brian Vickers wouldn't hit that!"
"Yo momma's so slow, Dale Earnhardt Jr. put her two laps down."
"Yo momma is so round people complain about her being a cookie cutter track. But she's still on the NASCAR schedule twice a season."
Yahoo! Sports NASCAR live chat. Because sometimes, it is just cars going around in a circle.
(Oh, and if you can top those ... go right ahead below.)