[f. TITTER v.1 + -ER1.] One who titters or laughs restrainedly; a giggler.
1828. Craven Gloss., Titterer, a laugher.
1866. Geo. Eliot, F. Holt, iv. He was too shortsighted to notice those who tittered at him—too absent from the world of small facts and petty impulses in which titterers live.
