comilona
feast
comer
to eat
+
-ona
augmentative suffix
Comilona means feast and can be understood as comer0 (to eat0) + -ona1 (augmentative1), literally a big or excessive eating event.
noun
- feastA large, hearty meal or feastDespués de la boda, tuvimos una comilona con toda la familia. // After the wedding, we had a feast with the whole family.