suck up

/S AH1 K AH1 P/
verb
  1. 1

    To absorb (fluid).

    โ€œThe dry soil sucked up water like a sponge.โ€

  2. 2

    (chiefly with "to") To adulate or flatter somebody excessively, generally to obtain some personal benefit or favour.

    โ€œJimmy sucked up to the English teacher hoping he would get an A.โ€

Synonyms

Source: https://en.wiktionary.org/wiki/suck%20up