In another strip, Florence thinks she's startled Sam, but he explains: "No, you did not surprise me. My plans to scream like a little girl when I reached the kitchen were made hours ago. It's pure coincidence you happened to be here at the time."
Nodded to in Something*Positive where Aubrey tactlessly reminds Davan of the time when he was a kid, was attacked by a dog, and wet himself in public, then she reassures him that his screams didn't sound girly. "A little like a boiling lobster, but not girlish at all."
DuPree: Oh my Gosh! I'd know that girlish scream anywhere!
Referenced in Ozy and Millie. Millie finds herself holding something she'd rather not. She asks Ozy how she can let go without screaming like a little girl. Ozy's answer? "You ARE a little girl." Millie takes the hint.
Referenced in DM of the Rings during the Helms Deep fight, when Legolas insists on counting kills.
Gimli: Okay, let me tell you how this will work. You and I kill an orc an average of once a round. You are ten kills ahead because you've got a bow, whereas I had to wait for them to scale the walls before I could start killing.
Legolas: Woo-hoo! Who's the elf?
Gimli: Therefore, you will REMAIN ten kills ahead of me...
Legolas: SAY IT! SAY I'M THE ELF!
Gimli: ...until you run out of arrows and you have to use your little 1d4 dagger, at which point you will cease to make a meaningful contribution to this battle.
Gimli: And then you will begin screaming like a woman.