friendship gas tank
"molly: "mike, can you drive me around to do some errands today?"  mike: "it's been a while since you filled up the friendship gas tank
the metaphorical container that holds all the liberties in a friendship
""molly: "mike, can you drive me around to do some errands today?"  mike: "it's been a while since you filled up the friendship gas tank" What is the definition of "friendship gas tank"?