So, this is a thing that just happened [The Guardian]:
MPs have inflicted a humiliating defeat on Boris Johnson by passing a backbench amendment withholding their support from his Brexit deal.
Instead of giving Johnson their backing for his Brexit deal in a “meaningful vote”, MPs passed an amendment tabled by a cross-party group of MPs led by Oliver Letwin by 322 votes to 306 – a majority of 16.
The prime minister will be legally obliged to request a Brexit delay at 11pm under the terms of the rebel Benn act, after the government lost the critical vote.
What does it mean? Fuckifino. Maybe a UK-based jackal will be kind enough to explain it to us dumb Yanks.