The definition of hysterical is laughing or crying for a long time or something that is extremely funny. An example of hysterical used as an adjective is the phrase a “hysterical child,” which means a child who has been crying for hours.

What is hysterical laughter?

The primary sign of pseudobulbar affect (PBA) is frequent, involuntary and uncontrollable outbursts of crying or laughing that are exaggerated or not connected to your emotional state. Laughter often turns to tears. Your mood will appear normal between episodes, which can occur at any time.

What does it mean by hysterically?

1 : of, relating to, or marked by hysteria hysterical conditions. 2 : feeling or showing extreme and unrestrained emotion hysterical fans … the paper did not hesitate to appeal to racial passions in hysterical headlines and rabid editorials. — The New Yorker. 3 informal : very funny a hysterical movie/joke.

causing unrestrained laughter; very funny: Oh, that joke is hysterical!