1. Suffering from the physical effects of drinking too much alcohol, typically including headache, nausea, and fatigue
I woke up hung over after last night's party.
Acordei de ressaca após a festa de ontem à noite.
2. Feeling unwell or exhausted the day after consuming excessive alcohol
He was too hung over to go to work this morning.
Ele estava muito de ressaca para ir ao trabalho esta manhã.