Since "Manybids" is not a standard, standalone academic term with a single famous paper, it most likely refers to one of two things in academic literature:
"Communication Complexity of Combinatorial Auctions"
“My father was a mapmaker,” Theo said, voice trembling. “He disappeared into the Fogwood three years ago. Before he left, he told me, ‘When the compass has no needle, follow the silence.’ I’ve tried everything to find him. Please—I bid my last copper, and every memory I have of him.”

