The correct terminology is sea level.Everything is on 'ground level' if you phrase it like that.Also, ynot, hold your nose so that no air can escape, then blow really hard out your nose while closing your mouth. The extra air will escape through crevices in your ears, and will 'unblock' them, so to speak.
compacted semen
Clear out any blockage with a bullet.
Who has the picture of "watch out, we've got a badass here."