pig out 狼吞虎咽、大吃特吃
Would you like to pig out with us tonight?
I only have a meal of bread, banana and ice cream; do I pig out?
【pig out】PHRASAL VERB If you say that people 【are pigging out】, you are criticizing them for eating a very large amount at one meal or over a short period of time./ overeat or eat immodestly; make a pig of oneself 暴饮暴食，狼吞虎咽的吃
Even though I'm on a diet, I still like to pig out with my friends sometimes.
Be careful of your table manners ; never pig out at a formal dinner.
【junk food】N-MASS If you refer to food as junk food, you mean that it is quick and easy to prepare but is not good for your health/ food that tastes good but is high in calories having little nutritional value. 垃圾食品
Sharon fears that her love of junk food may have contributed to her cancer.