I’ve heard slug slime (I’ve always thought it was mucous) will numb your lips. Is this true? I dare not try it…but two friends of mine tried it. I’m not sure if they were pulling my leg.
The most obvious way to find out would be for you to go start smooching some slugs.
Let us know how it turns out.
I was hoping for an answer with a little more detail. =\
This is actually partly true. The banana slug (Ariolimax columbianus), has slime with contains a topical anaesthetic, which will numb your lips, and other mucous membranes. AFAIK, this is the only slug species with lip-numbing slime, however.