TAKOBOTO

to affect the senses (to taste, to smell of, to feel like, to give the sensation of etc.)
This room smells of gas.

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「ちょっとめまいがするわ。」「かおいろがわるいぞ。いちにちやすんだほうがいいよ。」

" I feel sort of dizzy." "You look pale. You'd better take a day off." [F] [M]

このスープはさかなのあじがする。

This soup tastes of fish.

このへやはガスのにおいがする。

This room smells of gas.

あなたもちのにおいがするな

I smell blood on you too.

smack v. smack of sth : slight flavour of sth お尻ぺんぺんも同じスペル。

Miki

I think it would normally be the plural "smacks of"
http://dictionary.reference.com/search?q=smacks
"A distinctive flavor or taste.
A suggestion or trace."
I'm not sure it's a great translation though.

Amatuka

I was wrong. I mixed up the lines for v with that of n. It is for n-explanation but it should be used in singular according to an OXFORD dictionary. In contect "smack" is V after "This soup". いい訳に見えるけど。

Miki

Appeared in JLPT 2 (Select particle, が)

Amatuka

Not sure if the issue is resolved, but the phrase is always "X smacks of Y". Its a good enough translation, though, as a native speaker i can say this phrase has become _slightly_ archaic.

ixtli