Shell-out Falter 

The set of delaying tactics, mystified looking around moves and "where the hell's my wallet" self-frisking someone makes when they want you to pickup the check.

He's in a startup now and won't pay for anything, all he'll do is pull a Shell-out Falter on you.

Shell-out Falter by Ross Brunson November 30, 2011

shellout falter 

A condition or behavior that comes over some people, because they are cheap or short of funds, when the check arrives. Coined by the late, great Roger Miller.

"When you're in a restaurant it's funny how people at the table get shellout falter when the bill comes."

shellout falter by RBJr. December 10, 2008