Suck up

What is Suck up?

Suck up definition and meaning on Dictionary terms:
verb (used with object)
to draw into the mouth by producing a partial vacuum by action of the lips and tongue: to suck lemonade through a straw.
to draw (water, moisture, air, etc.) by or as if by suction: Plants suck moisture from the earth. The pump sucked water from the basement.

to apply the lips or mouth to and draw upon by producing a partial vacuum, especially for extracting fluid contents: to suck an orange.
to put into the mouth and draw upon: to suck one’s thumb.
to take into the mouth and dissolve by the action of the tongue, saliva, etc.: to suck a piece of candy.
to render or bring to a specified condition by or as if by sucking.

verb (used without object)
to draw something in by producing a partial vacuum in the mouth, especially to draw milk from the breast.
to draw or be drawn by or as if by suction.

(of a pump) to draw air instead of water, as when the water is low or a valve is defective.
Slang. to behave in a fawning manner (usually followed by around).
Slang. to be repellent or unpleasant: Poverty sucks.
Slang. to be inferior, as in quality or execution; be poor: Everyone says the show sucks. She sucks at tennis.

an act or instance of sucking.
a sucking force.

the sound produced by sucking.
that which is sucked; nourishment drawn from the breast.
a small drink; sip.
a whirlpool.