Rhinocerotic

1) Of, or pertaining to, rhinoceroses.

2) The use of the nose or nostrils for erotic purposes. From 'rhinal', meaning 'of the nose', and 'erotic', the meaning of which is obvious.

Ted: So how was the zoo?

Mark: Ah, we had a lot of fun. We even participated in rhinocerotic activity behind some bushes.

Ted: Oh, that does sound fun...