Usually, 'wash up' means cleaning after eating.

After Meals

'Wash up' often implies a shared responsibility among family or friends.

Group Activity

This 'wash up' means something is brought ashore by water.

Objects 'wash up' without prediction, often surprising finders.

It involves washing hands and face, possibly for hygiene or etiquette.

'Wash up' often comes before an essential activity, like meals or sleep.

The phrase can mean a significant, often irreversible, drop in success.

When related to a career, 'wash up' is metaphorical, not about cleaning.