Delight in; drink (3,2)
I believe the answer is:
lap up
I believe this is a double definition.
'delight in' is the first definition.
(to lap something up is to delight in it)
'drink' is the second definition.
(to lap up is to drink something up)
(Other definitions for lap up that I've seen before include "Accept with obvious pleasure" , "Scoop" , "motor race by some distance?" , "Assimilate with relish" , "Drink (water) like a dog" .)