grin and bear it

[Theseus]

To endure something unpleasant in good humour.
--There is nothing you can do but grin and bear it.
--I hate having to work for rude people. I guess I have to grin and bear it.
Is υπομένω στωικά a tolerable translation?

 

[Palavra]

Υπομένω στωικά is a very good translation :) I am trying to outdo you, so please hold

 

[nickel]

Often, as in your examples, it's just κάνω υπομονή. You see, υπομένω στωικά or δέχομαι αδιαμαρτύρητα are normally followed by an object.

 

[SBE]

Σκάσε και κολύμπα;

 

[drsiebenmal]

In rather informal register and not exactly correlated:

Σκάσε και σκάβε! (or κολύμπα, as SBE already noted :))
Ρούφα το αβγό σου!
Άρπα την και μη μιλάς!

 

[nickel]

I guess we all agree that both syntactically and register-wise these are no-nos, at least in cases as in those of the examples:
--There is nothing you can do but grin and bear it.
--I hate having to work for rude people. I guess I have to grin and bear it.

 

[drsiebenmal]

I thought you had already answered stoically those two... :)

 

[daeman]

Theseus, in case you're interested, in the thread for suck it up you can find other no-nos (and yes-yeses too, like υπομένω αγόγγυστα).

 

[sarant]

Unless I missed it, an expression missing from both threads, that could sometimes be used is σφίγγω τα δόντια/σφίξε τα δόντια.

 

[azimuthios]

Χώνεψέ το!

As advice: ελπίζω να το πάρεις καλά ή πάρ' το καλά. Ό,τι και να γίνει/πάθεις μη χάνεις το χαμόγελό σου.