To me it brought to mind a silly noise that a strange bird might make, or perhaps the noise a person might expell when climbing something awkward. According to Ed Hartouni's quote from the Roper Guide, it is an acronym that stands for "Right Of Reed Pinnacle". The route caught my eye one day while browsing the Reid guide. According to the topo, 6 moderate pitches of mostly crack climbing would take one up the center of the cliff, just short of the top, making the route one of the longest at Reed Pinnacle.
Venturing up this route, I wasn't disappointed. Although it was a little dirty, the route offers burly, old-school 5.7 chimney and offwidth climbing that is probably more appropriate for 5.8 leaders accustomed to wide techniques. The views are nice, and the final pitch was great (left variation) - I'd say 4-5 stars on the Taco rating. Overall I'd give the route 3 stars.
I first attempted to climb the route in January, choosing to try out the first 3 pitches of Flatus as a more direct start instead of climbing the easier and dirtier first 2 pitches of the standard route. This start was a great route - clean rock with sustained and burly 5.9 climbing and interesting moves. The route also lived up to its name, as each pitch seemed capable of making a climber blow out some flatus.
Unfortunately my partner was new to wide climbing, and was utterly spent after the 3 pitches.