trundle bundle 

An all-in-one pajama outfit for kids. Usually made of blanket-like material with rubber feet.

"When I was a kid, I defecated in my Trundle Bundle because I couldn't get it off fast enough."

trundle bundle by PoweredByLolcats March 19, 2009

TrundleBundle 

When someone nearly falls down the stairs and does a ridiculous stumbling dance called a trundlebundle

Did you see that n00b trundlebundle?

TrundleBundle by Brian, April 28, 2008