- Flummox is defined as to confuse someone.
When you ask someone tough questions about a scientific theory that he is studying and he cannot understand the questions, this is an example of when you flummox.
Origin of flummox; from uncertain or unknown; perhaps
transitive verbflum·moxed, flum·mox·ing, flum·mox·es Informal
Origin of flummoxProbably of English dialectal origin.