The Bright Side of Life.

"Always Look on the Bright Side of Life" is a popular song written by Eric Idle that originally featured in the 1979 great film Monty Python's Life of Brian and has gone on to become a common singalong at public events such as football matches as well as funerals
"Always Look on the Bright Side of Life" was conceived as a parody of the style of song often featured in Disney films.

CRUCIFIED = crucificado

swear and curse = decir palabrotas y maldecir

chew = masticar

gristle = cartílago

chew on life's gristle = pasar los malos tragos de la vida

grumble = refunfuñar

whistle = silbar

turn out for the best = cambiar a mejor

jolly rotten = asquerosa

in the dumps = de capa caída (dump=vertedero)

silly chumps = tonto

purse = fruncir

face the curtain with a bow= enfrentarse al final con una reverencia

the last laugh is on you = tú eres el último que ríe