"Selling heat", a folk custom associated with the first full moon of the first lunar month according to which saying "my heat" to someone before dawn is supposed to make one's sufferings that summer less intense.

pile, mound

addition / plus (in arithmetic formulae)

See 더 (-deo-, retrospective suffix) and 라 (-ra, declarative mood suffix).

Pyongan, Hwanghae, Hamgyong, Yukjin, and Koryo-mar form of 거품 (geopum, “bubble”).

going Dutch (to pay for one's own food and bills, or split the cost, when eating at a restaurant or going out for entertainment)

to go Dutch (to split the cost)

(dated or southern Gyeongsang) See 더 (-deo-, retrospective suffix) and 면 (-myeon, conditional suffix). [until early 20th century]

to become hot

[~시(市)] Durham (a large city, the county seat of Durham County, North Carolina, United States). / [~군(郡)] Durham County (a county of North Carolina, United States). / [~시(市)] Durham (a city, the county town of County Durham, United Kingdom). / [~주(州)] County Durham (a county in the Northeast of England).