bottom out

动词

To reach the bottom; to reach the nadir or lowest point. (intransitive)
Of a vehicle, to touch or drag along the ground or other surface. · Going over that speed bump, my car bottomed out.
Of a vessel, to touch the bottom of a water body.
Of a suspension or similar device, to strike the lower mechanical stop and lose the ability to buffer further downward motion. · The hard landing caused the oleos to bottom out and the gear struts collapsed.
To fully anally penetrate. (intransitive, slang)
To be, at a basic level. (intransitive) · The problem bottoms out into a management issue.

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