Cumberbun

not bow tie ... Tux and Overstock with bun

No, you can wear a bow tie with a cumberbun. There is an exception. That if you wear a European tie. Who is short, form tie, square bottom, and designed for Colar tuxedo. And just over the cumberbun. Flag

Theoretically the man I can dress however he likes, so yeah he could wear a tie with a long cumberbund.

In reality, it is very stupid and / or outside unless the rest of the population on smoking also did it. So unless he wants to stand out like a sore thumb, no, he should not wear a tie with a long cumberbund.