Funny, but jokes aside, I found the NLP to be quite impressive / accurate.

I put the following phrase

> I nut on my girlfriends face.

and the parser correctly tagged 'nut' as a VBP (i.e. Verb, non­-3rd Person Singular resent) i.e. that 'nut' in this context is a verb, and not a noun.

Here's what the tagging returned (all words with tags)

I/PRP nut/VBP on/IN my/PRP$ girlfriends/JJ face/NN ./.

Tag Descriptions: http://stackoverflow.com/a/1833718/325521