Now I have no idea what's its actual name, but I can tell how to play it. When a car drives by, release the whisperer (aka fart) by spacebar. You can also turn the "pressure" down by pressing left arrow key, but this ability has to be recharged by farting long enough.

Korean farting.swf (576.8 KiB) 550x400, Uncompressed. 19 frames, 24 fps (00:01). Ver5, AS1/AS2. Network access: No. Text: Yes. Bitmaps: Yes. Audio: Yes. Video: No. [find in archive]