Indulge yourself and Make merry

Make merry and indulge yourself are semantically related. In some cases you can use "Make merry" instead a verb "Indulge yourself".

Make merry verb - Celebrate noisily, often indulging in drinking; engage in uproarious festivities.

Indulge yourself and make merry are semantically related. Sometimes you can use "Indulge yourself" instead a verb phrase "Make merry".