logomania
lo·go·ma·nia
noun
1.
pathologically excessive (and often incoherent) talking
Origin
From logo- + -mania.
Related words
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.