When wine is in, wit is out.

Understand the thought

Meaning in plain English

The saying warns that drinking can undermine judgement and self-restraint. It contrasts the presence of wine with the loss of the clear thinking needed for a considered response.

What the words are saying

Wit here concerns sense or judgement rather than merely telling jokes. The proverb presents drinking and clear thinking as opposed, warning against confident decisions made in a setting where restraint has weakened. It can be used about an argument, a promise or a message that someone would reconsider later. This is a proverbial warning, not a precise statement about quantities, individual effects or medical treatment. Its useful focus is the timing of a consequential decision: a social moment need not be the moment to settle an important commitment or send an irreversible reply.

Everyday example

At a party, a guest decides to leave an angry email in drafts and reconsider the disagreement the next day.

When to use it

Use it as a caution about making consequential decisions in a drinking setting.

Agent-assisted editorial interpretation. This explains the words; it does not by itself verify their author or earliest origin.