godan verb (-ru), intransitive verb
panic; act frantically; act bizarrely
Slang verb coined from the drug name Tamiflu, referencing flu-related panic and bizarre behavior reports in the late 2000s and early 2010s. Used to describe someone freaking out or acting irrationally.
試験前にタミフってる。
He's panicking before the exam.
Don't suddenly freak out like that.