definition of
eat up

[1] #1 eat up v. finish eating all the food on one's plate or on the table; "She polished off the remaining potatoes". wn

[2] #2 eat up v. use up (resources or materials); "this car consumes a lot of gas"; "We exhausted our savings"; "They run through 20 bottles of wine a week". wn

[3] #3 eat up v. enclose or envelop completely, as if by swallowing; "The huge waves swallowed the small boat and it sank shortly thereafter". wn