The Collaborative International Dictionary of English v.0.48:

Chasse-caf'e \Chasse`-ca`f['e]"\ (sh[.a]s` k[.a]`f[asl]"), n.
   [F., fr. chasser to chase + caf['e] coffee.]
   See Chasse, n., above.
   [Webster 1913 Suppl.]

The Collaborative International Dictionary of English v.0.48:

Chasse \Chasse\ (sh[.a]s), n. [See Chasse-caf['e]]
   A small potion of spirituous liquor taken to remove the taste
   of coffee, tobacco, or the like; -- originally
   chasse-caf['e], lit., "coffee chaser."
   [Webster 1913 Suppl.]