What word or phrase does your mother always say?
See spazz out
also spazz, by 1965, U.S. teen slang, apparently a derogatory shortening of spastic. Also used as a verb.
The most stimulating and energetic member of a group, team, etc; live wire: Mr Fadiman himself is a splendid spark-plug (1941+)
A gem, esp a diamond (1822+)