A bitwise

"A bitwise and," you say, trying to sound confident.

He looks disappointed, "Lucky guess."

You point at the fishbowl on the counter, "I believe you owe me some business cards."

He shrugs and smiles at you, "Fine. I'll hold up my end of the bargain."

You collected an extra eight cards in five minutes. Not bad.

The man comes up to you and puts his hand on your shoulder.

"My name is Mario. I'd like another shot at that tight little butt of yours. I'll be at the Datacomm party tonight if you're up for a rematch."