• to get down to one's knees, to sink on one's knees
• silence broods over the scene
• to cloud, to darken, to lour
• to psych out, to tip out
• to capsize, to crash over, to fall over, to keel over, to tip, to tip over, to tip up, to turn turtle, to upset, upset
• boss, camber, nipple, shoulder, swell
• tipping, turning over, turnover, upset