Definition of one-track mind:
°That said to be possessed by someone who is obsessed with something or only able to think of one thing.
"He has a one-track mind. All he ever talks about is trains and railroads."
Definition of one-track mind:
°That said to be possessed by someone who is obsessed with something or only able to think of one thing.
"He has a one-track mind. All he ever talks about is trains and railroads."