Invisible Dog on a Leash

Quark: "Can you believe it, Odo? They were practically GIVING these poor invisible dogs away at the Bajoran festival!"
Odo: "Quark, I think there's something you should really know...."

Rare?

Picard: "Tasha! You're... you're...."
Tasha: "Hold it, hold it! I know what you're all thinking.  No, I am NOT the limited edition 1701 Series Tasha Yar."

Targ Trouble

"I'd really like it if someone else would clean up all the targ poop just for once!"

Squabble

Sarek: "I don't want to hear it."
Spock: "But father...."
Sarek: "Talk to the hand, Spock."

Short Shot

Sisko: "Quick, Bashir! Shoot him!"
Bashir: "I'm trying, sir, but for some reason the phaser beam only shoots out two feet!"