Effervescence

Guy de Maupassant (Google–hosted image from <cite>Life</cite>)

Guy de Maupassant (Google–hosted image from Life)

She made an effort to recover herself; but every time she was on the point of speaking, her laughter bubbled up in her throat and burst out; she checked it quickly, but it always got the better of her, breaking out again and again, like the effervescence of an uncorked bottle of champagne, whose froth must overflow. — Guy de Maupassant, His Confession

Laurine d’Estelle’s reaction to her dour husband’s confession of adultery.