Third-person singular simple present indicative form of simper.(verb)
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Use "simpers" in a sentence
""I'm not wearing this for nothing," she simpers to E!'"
""Ah, that's a good one, boss," Toady Richter simpers."
"Typically in CVT-equipped vehicles the powertrain simpers and drones annoyingly as the vehicle accelerates, but there seems to be enough structure and soundproofing in the Quest to mute that."