Example : An orgy of shopping.
An emotional binge.
A splurge of spending.

Synonyms : orgy, splurge

Example : They went on a bust that lasted three days.

Synonyms : bout, bust, tear

Example : She stuffed herself at the dinner.
The kids binged on ice cream.

Synonyms : englut, engorge, glut, gorge, gormandise, gormandize, gourmandize, ingurgitate, overeat, overgorge, overindulge, pig out, satiate, scarf out, stuff