The informal idiom go at it means to do something with intense energy, enthusiasm, or effort. Depending on the context, that energy can be directed toward working hard, arguing, fighting, or even romantic intimacy.
1. Working or Doing Something Energetically
When applied to a task, meal, or activity, it means diving in wholeheartedly without holding back.
- "We have a lot of yard work to finish before it rains, so let's go at it."
- "The kids were starving after soccer practice and immediately went at the pizza."
2. Arguing or Fighting Fiercely
Used for two or more people, it describes an intense verbal argument or physical fight.
- "My neighbors were going at it again last night—I could hear them yelling through the wall."
- "The two rivals went at it for ten rounds before the referee stopped the match."
3. Having Sex (Informal / Euphemistic)
In casual conversation, it is frequently used as a euphemism for enthusiastic sexual activity.
- "They’ve only been dating a week, and they’re already going at it like rabbits."
Common Grammar & Variations
- Conjugation: Because "go" is irregular, it changes with tense: go at it, goes at it, went at it, going at it, gone at it.
- Replacing "it" with a specific noun: You can swap out "it" for the specific target of the effort or attack (go at the problem, go at each other).
- Common pairing — "Have at it": A closely related phrase meaning "go ahead and start" or "help yourself" (e.g., "The buffet is open—have at it!").
