the.com/blockage
The moment something stops moving and everything behind it learns patience the hard way.
means An obstruction that prevents normal flow or passage through a pipe, vessel, road, or process.
from From Old French 'bloc' (a log or solid mass), via Dutch 'blok'; the same root that gives us city blocks, roadblocks, and writer's block — all things that stop you cold.
Plumber's breadDrain blockages fund a global multibillion-dollar industry.
Body versionAn arterial blockage causes most heart attacks.
Suffix logicThe '-age' turns 'block' into the act of blocking.