(/ˌsaɪkləʊˌpɛntənəʊˌpɜːhɪdraʊˌfɛnənθriːnd/)
adj.
Irrational or incoherent in speech and actions caused by alcohol.
Tereka confidently declared their plans to start a gourmet grilled cheese restaurant, sounding surprisingly cyclopentanoperhydrophenanthrened.
Source: Wiktionary