talking to tire someone out is not Gish gallop.

So you don't understand the term.

here:

The Gish gallop (/ˈɡɪʃ ˈɡæləp/) is a rhetorical technique in which a person in a debate attempts to overwhelm an opponent by presenting an excessive number of arguments, with no regard for their accuracy or strength, with a rapidity that makes it impossible for the opponent to address them in the time available.