off the top of head

(right) off the top of one's head

Fig. without giving it too much thought or without precise knowledge. Mary: How much do you think this car would be worth on a trade? Fred: Well, right off the top of my head, I'd say about a thousand. Tom: What time does the morning train come in? Bill: Off the top of my head, I don't know.

See also: head, top

---

off the top of your head  (informal)

if you say something off the top of your head, you say it without thinking about it for very long or looking at something that has been written about it 'What was the name of that plumber you used?' 'I couldn't tell you off the top of my head.' Off the top of my head I could probably only name about three women artists.

See also: head, top

---

off the top of your head (spoken)

based on what you remember I couldn't tell you what the final score was off the top of my head. Off the top of my head I could probably only name about three women artists.

See also: head, top