(simile, usually of motorized machinery) To operate flawlessly and smoothly.

plural of mammal-like reptile

(paleontology, dated) Any basal member of the Synapsida, related to the mammals but superficially resembling reptiles.

(derogatory, Internet slang) You are stupid; said as if lowering oneself to an equally moronic state of mind.

(simile) Stubborn and tenacious; persistent; relentless; dogged.

(simile) To breed very rapidly, to have many children

(simile) To sleep heavily, long and without disturbance.

Alternative form of like a chicken with its head cut off

(simile) To be a perfect fit, to be exactly the right size.

(transitive, simile) To be able to discern someone's thoughts from his or her body language or other behavior.