Gaining copious amounts of banter or laughter from someone of the forename or surname 'Smith' Usually ending in said Smith becoming popular or well known in the bater and comedy world.
"I had some proper laughs off James last night!"
"James Smith?"
"Yeah he's got some Smithy banter going on"
"James Smith?"
"Yeah he's got some Smithy banter going on"
by Kate Winslut October 2, 2011