that horrible grass that cuts your legs when you run through it. With some varities it cuts you when you slid your finger on it wrong or even walk through it.
guy 1 - Dude! did you attacked by a gang! look at your legs!
guy 2 - No bro - pollie weed guy 1 - Oh. even worse.
The product of a dislodged dingleberry rolling around in ones undergarments or down their pantleg, very similar to the insect from which it derives its name.
Hold up, I need to make an adjustment. I have a rollie pollie creepin' around near my skidmark.