The discussion centers around finding an English idiom or expression that describes two individuals or entities that work exceptionally well together, similar to the synergy seen in a football team's strikers. Participants clarify that terms like "hand in glove" and "like a well-oiled machine" are idioms and similes rather than proverbs. Suggestions include "two peas in a pod," "perfect match," and "they make a great team," with some contributors emphasizing common phrases used in American English. The conversation also touches on the concept of a "synergistic relationship," where the collaboration yields greater results than the sum of individual efforts. Various pairings are humorously listed to illustrate the idea of compatibility, such as "peanut butter and jelly" and "Batman and Robin." Overall, the focus remains on identifying a fitting expression for effective cooperation.