Definition: The word "A-frame" can be used as a noun or a verb. It refers to the structure of a particular wave which peaks up in the center and allows two surfers to ride it from that center point and go in different directions. The crest of an A-frame will stand up and form an "A" shape before breaking both right and left. A-frames can occur at beach breaks or over reefs that break both right and left. Pipeline often forms an A-frame, so surfers can go left or drop in and go Backdoor.
Also Known As: split-peak
Noun: At the last second that wave turned into a full on A-frame, so I turned around and went left while Johnny went right.
Verb: I wasn't even gonna go on that wave until I saw it start A-framing, so I dropped in behind you and went the other way.