1 syllable:
bluff, boeuf, bruff, buff, buffe, cdf lif, chuff, cluff, cuff, cuffe, dms af, druif, duff, fluff, gccs af, gcss af, gc maf, gliff, gruff, guff, hough, huff, knuff, luff, muffe, pluff, puff, rla pf, rough, ruf, ruff, ruffe, s/pdif, saiph, schliff, schuff, scruff, scuff, shruff, shuff, slough, sluff, snuff, spdif, spliff, stough, stuff, tough, tuff, uw hf, vbe af, vdiff, vse af

2 syllables:
acuff, ahruf, anruf, aufruf, auspuff, ausruf, babeuf, besnuff, breadstuff, bumfluff, creampuff, cream puff, dayhuff, dyestuff, earmuff, elbeuf, enough, feedstuff, foodstuff, get-tough, get tough, godbluff, goodnough, greenstuff, handcuff, hofuf, hot stuff, hufuf, leboeuf, lebouef, macduff, mcduff, mcgeough, mcgough, neck ruff, off-the-cuff, outbluff, petstuff, piedboeuf, puff-puff, real stuff, rebuff, roughscuff, scottsbluff, small stuff, sob-stuff, sob stuff, tartuffe, titeuf, unstuff, vakuf, yusuf

3 syllables:
counterbuff, farabeuf, fisticuff, good enough, hufflepuff, in the buff, magaluf, off the cuff, overruff, overstuff, powder-puff, powderpuff, powerpuff, semi-bluff, semi-tough, sip-and-puff, soon enough, sure enough, trouser cuff, well enough, xtratuf

4 syllables:
abudefduf, anne-marie duff, jigglypuff, marshmallow fluff, oddly enough, oeil-de-boeuf, oeils-de-boeuf, strangely enough, sure-enough

5 syllables:
create from raw stuff, opchanacanough, opechancanough

6 syllables:
curiously enough, the world is not enough

7 syllables:
interestingly enough