لخّصلي

Although the phrase is used in connection to Estragon's boots here, it is also later used by Vladimir with respect to his hat.The difficulty for Beckett of keeping a dialogue running for so long is overcome by making his characters forget everything.And since Vladimir cannot rely on Estragon to remind him of things, he too exists in a state of forgetfulness.Essentially it describes the hopelessness of their lives.Thus, most of the play is dedicated to devising games which will help them pass the time.Since passing the time is their mutual occupation, Estragon struggles to find games to help them accomplish their goal.Thus they engage in insulting one another and in asking each other questions.Vladimir, although possessing a better memory, distrusts what he remembers.

Although the phrase is used in connection to Estragon's boots here, it is also later used by Vladimir with respect to his hat. Essentially it describes the hopelessness of their lives.
A direct result of this hopelessness is the daily struggle to pass the time. Thus, most of the play is dedicated to devising games which will help them pass the time. This mutual desire also addresses the question of why they stay together. Both Vladimir and Estragon admit to being happier when apart. One of the main reasons that they continue their relationship is that they need one another to pass the time.
After Pozzo and Lucky leave for the first time they comment: V: That passed the time.
E: It would have passed in any case.
And later when Estragon finds his boots again: V: What about trying them.
E: I've tried everything.
V: No, I mean the boots.
E: Would that be a good thing?
V: It'd pass the time. I assure you, it'd be an occupation.
Since passing the time is their mutual occupation, Estragon struggles to find games to help them accomplish their goal. Thus they engage in insulting one another and in asking each other questions.
The difficulty for Beckett of keeping a dialogue running for so long is overcome by making his characters forget everything. Estragon cannot remember anything past what was said immediately prior to his lines. Vladimir, although possessing a better memory, distrusts what he remembers. And since Vladimir cannot rely on Estragon to remind him of things, he too exists in a state of forgetfulness.