If I recall correctly, the team was walking down a trail single file, (it could have been on the other side of the bridge, I'm not sure). Matt was pontificating about how snaring nutria was similar to finding the right woman, the more snares one set the better chance of snaring a nutria. Riley says 'so women are like nutria? and continues to ask do they give you an erection?'
If they use this language in front of the camera, imagine the conversation after the camera crew leaves at the end of the day.
The puke comment was based on the camera work of her sitting on the bridge vomiting