the upper hand 

Definition: To have more power than someone else, so that you are able to control a situation.

The company gained the upper hand in the business by buying its competitors.

After hours of fierce negotiation, the President gained the upper hand.

the upper hand by 请关注公众号：英文口语专家 June 7, 2019

gain the upper hand 

Where you are able to happily grasp and retain a nice gal's "upper" hand --- i.e., the one opposite to her "lower" hand from the shoulder that she's lying on --- while stretched out on your sides at the beach or spooning her in bed.

Being allowed to gain the upper hand while spooning with a nice girl is always a pleasure; just remember to always employ the wrist-twist compromise to ensure maximum comfort for both of you.

gain the upper hand by QuacksO August 9, 2018