People were 'straining their necks' [=were lifting their heads as high as they could by stretching their necks] to see the fight.
He 'cracked/collapsed/buckled under the strain'. [=he was not able to deal with the pressure]
I 'strained my ears' to hear [=I tried very hard to hear] what they were whispering.
(..) Oh, I don't know. Kramer dating your roommate, it's funny. It's a riot, Alice. When do you put the sauce on? Any other time. No, no, no. I like to strain the sauce. And I could really live without... ...the tribal music and the make-out sessions in the living room. Yeah, Tina likes the couch. (..)1991 TvShow: Seinfeld Title: The Truth Season: 3 Episode 2