Seinfield fans please help ?

[waitingfornaru]

I have what George Costanza calls 'hand'.


This comment was made to me in the context of a potentially mildly flirty conversation about how he knows something I maybe don't, but I've never seen Seinfield, so can I assume his comment means something along the lines of 'having the upper hand'? I say potentially flirty, who knows, I may be on the wrong track!

I'm too tired lazy to Google it and it will only come up with episode quotes anyway!

Thankyou in advance :)

[ZacharyQuack]

Yes, it means upper hand