To be obsessed with the male genitals.
To have a burning need to have to bring the following words penis, cock, dick, schlong, nob,
skin-
flute, pork-sword,
shaft, pipe, pole, meat etc in to every conversation even if it's not appropriate in any way or makes no sense to do so.
Luke:
Kyle, have you done that job yet?
Kyle: No but my dick is really
huge.
Luke: You really need to deal with your nobsession.