"Michael Jordan has used several analogies to describe what he and Scottie Pippen can do to an opponent when both are at the top of their game.

His favorite is '
ham-and-egging,' when one or the other comes out strong and one or the other finishes strong."
Terry Armour, "Knick Motto: We Do Not Like Bulls' Eggs and Ham,"
Chicago Tribune, April 11, 1997
This phrase is also finding its way into non-sports contexts:
"Dad's memory is fading and Mom has arthritis something fierce in her neck and knees, so I worry. So far, my worrying has been wasted. Mom and Dad are doing a dandy job of 'ham and egging it' as we say in golf. She can't drive, but she's a superb navigator who can spot trouble blocks ahead."
Ron Wiggins, "Mom and Dad Find Strength in Each Other," The Palm Beach Post, May 5, 1998

The following cite uses a variant of the phrase, but the connection is obscure:
"There began the complex process of "ham'n and egg'n"the simultaneous search for a business to buy and the money with which to buy it."
Trevor Cole, "Larry's Party," Report on Business Magazine, October, 1999