FULLNESS
(as) full as a tick and (as) tight as a tick
very full of food or drink. (Informal. Refers to a tick that has filled itself full of blood.)Little Billy ate and ate until he was as tight as a tick.Our cat drank the cream until he became full as a tick.
filled to the brim
filled all the way full filled up to the top edge.I like my coffee cup filled to the brim.If the glass is filled to the brim, I can't drink without spilling the contents.