A man who will eventually become sterile from actually sitting on fences, due to little or no blood flow to the testicles.
Bro 2: "Maybe...it depends on if I gain the momentum to slide my lazy ass out of bed that day. I might just sleep instead. But a party does sound kinda fun. I dunno...(sigh)"
Bro 1: "Just tell me if you're coming or not, you freakin' fence jockey!"