It's a line from a movie or was it Kung Fu.... anyway...he's kidding you. The thing goes like this...the martial arts instructor has a pebble in his hand....and he says " if you can snatch the pebble from my hand grasshopper....then you will have learned and gained the wisdom or something like that. Anyway he holds his hand out and the guy keeps trying to get it till he does, then he moves on to the next level. Sometimes when my teenager want's money etc. we play the pebble game....."who's your sensay"....... in english "who's your Daddy/Mama" is what I say when she looses...which is always...but I give her the money anyway.