Drink Heartily is an expression used to describe the act of consuming a beverage with enthusiasm and vigor. The crossword solutions for this term are SWIG (4 letters), CHUG (4 letters), QUAFF (5 letters), and LAPUP (5 letters). SWIG means to take a large gulp of a drink, CHUG means to drink quickly and continuously, QUAFF means to drink deeply and heartily, and LAPUP means to drink eagerly and noisily. All of these words describe the same action of drinking with enthusiasm and energy.