- An idiom meaning you cannot understand something at all; it's completely confusing or nonsensical.
Explanation
Origin
- Refers to the two sides of a coin: heads (the side with a person's head) and tails (the reverse side).
- If you can't distinguish which side is which (perhaps the coin is worn or unfamiliar), you can't make sense of it.
- The expression implies total confusion or inability to decipher meaning or structure. Dates back to the 17th century or earlier.
Synonyms & Related Expressions
Alternatives
Slang/Informal:
- I'm clueless.
- This is fucked. / This shit's confusing as hell. (Vulgar)
- My brain hurts trying to figure this out.
- It's gibberish. / It's word salad.
More Formal:
- I find it completely unintelligible.
- I'm unable to comprehend this.
- The meaning is entirely obscure to me.
Situational Appropriateness
- Generally informal to semi-formal.
- Perfectly fine in most everyday conversations and many work situations, especially when expressing difficulty with complex or poorly explained information.
- Might be slightly too informal for very high-stakes formal presentations or reports.
Misunderstanding Warnings
- Non-native speakers might try to interpret heads and tails literally. Explain it's an idiom for total confusion.
Examples
- These instructions are terribly written; I can't make heads or tails of them.
- He gave such a rambling explanation, I couldn't make heads or tails of it.
- This abstract art piece... honestly, I can't make heads or tails of it.
Dialogue
Alice: Have you figured out this new software update yet?
Bob: Not a chance. I've read the manual twice, and I still can't make heads or tails of it. The interface is completely different.
Alice: I know, right? Maybe we should ask Carol; she seems to have gotten the hang of it.
Bob: Good idea.
Social Media Examples
- Tweet: Trying to understand the new tax code changes... I can't make heads or tails of it. #confused #taxes
- Forum post: Need help with this IKEA assembly manual. I can't make heads or tails of step 5. Anyone?
Response Patterns
- Sympathy or agreement: Yeah, it's really confusing. / Tell me about it!
- Offering help: Do you want me to take a look? / Maybe I can help decipher it.
- Sharing their own confusion: Me neither! It's complete gibberish.
- Explaining it (if they understand): Oh, basically what it means is...
Common Follow-up Questions/Actions
After someone says I can't make heads or tails of it:
- One might ask What part is confusing you? or offer assistance.
- One might abandon the confusing item/topic or seek help from a third party.
Conversation Starter
- No.
- It's a statement expressing confusion about something specific.
Intonation
- Usually spoken with a tone of frustration or bewilderment.
- Stress often falls on can't, heads, and tails. I CAN'T make HEADS or TAILS of it.
- Falling intonation at the end, stating a conclusion of confusion.
Generation Differences
- Widely understood across generations, though perhaps slightly more common among older speakers. Younger speakers might just say I don't get it or This makes no sense.
Regional Variations
- Common in both American and British English, as well as other variants.