the practice of filling low-lying land, building embankments / the practice of buying small parcels of land to consolidate and resell / rigging the price of land for sale

to raise the ground level, to fill low areas of land

a real estate dealer who buys small parcels of land to consolidate and resell, especially an unscrupulous or coercive dealer; a landshark

imperfective and stem (or continuative) forms of 上げる (ageru) [ichidan]

(slang) excited; hyped; intense

(idiomatic) to take on a fight; lit. to buy a fight

buy on credit

stocking up

stock up

(slang) Of an adult, buying (chiefly childish) things in great amounts (due to newfound purchasing power).