How do native English speakers say "i don't know what you're talking about."?

Native speakers reduce "i don't know what you're talking about." to "i dunno whacha talkin' 'bout." (/aɪ dəˈnoʊ ˈwʌtʃə ˈtɔːkɪn ˈbaʊt/) in natural speech. I am not aware of, or do not understand, the topic you are discussing.

i don't know what you're talking about. → i dunno whacha talkin' 'bout.

Q: What is the connected speech form of "i don't know what you're talking about."?

"i don't know what you're talking about." becomes "i dunno whacha talkin' 'bout." — a sentence reduction pattern. This is a common English reduction where 'don't know' becomes 'dunno', 'what you're' becomes 'whacha', and 'about' loses its initial 'a' and is shortened to 'bout'. It demonstrates several aspects of natural, fast speech, including elision and assimilation.

i don't know what you're talking about. → i dunno whacha talkin' 'bout. /aɪ dəˈnoʊ ˈwʌtʃə ˈtɔːkɪn ˈbaʊt/ Sentence Reduction

I am not aware of, or do not understand, the topic you are discussing.

This is a common English reduction where 'don't know' becomes 'dunno', 'what you're' becomes 'whacha', and 'about' loses its initial 'a' and is shortened to 'bout'. It demonstrates several aspects of natural, fast speech, including elision and assimilation.

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Step 2 · Reveal

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STANDARD FORM → REDUCED FORM

i don't know what you're talking about. → i dunno whacha talkin' 'bout.

/aɪ dəˈnoʊ ˈwʌtʃə ˈtɔːkɪn ˈbaʊt/

I am not aware of, or do not understand, the topic you are discussing.

Step 3 · Context

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Example 1

Honestly, i dunno whacha talkin' 'bout; I wasn't even there.

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Example 2

Could you explain it again? I dunno whacha talkin' 'bout with all those technical terms.

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Example 3

She just looked at him and said, "I dunno whacha talkin' 'bout."

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Example 4

Honestly, i dunno whacha talkin' 'bout, I've been home all day.

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Example 5

Dude, i dunno whacha talkin' 'bout; I wasn't even there last night.

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Step 6 · Result

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i don't know what you're talking about. → i dunno whacha talkin' 'bout.