Casual term for a hand-held baby and child care apparatus with a compressible bulb (similar to that of a turkey baster) on one end and a sometimes rigid nozzle-like shape at the other end. The bulb is compressed, the nozzle is inserted into a nostril, and then the bulb is released resulting in a vacuum action that sucks boogers out of the baby's or child's nose. The fancy term for this item is "Nasal Aspirator".
New Mom: Excuse me. Have you ever used a nasal aspirator?
Mom of 3: Nasal aspirator?
New Mom: Yes. One of those bulb-thingies you use when your baby has a stuffy nose?
Mom of 3: Oh, yeah, you're talking about a booger sucker.