一觸即潰

to collapse on the first encounter / to give way at once

one / single / a (article) / as soon as / entire; whole; all; throughout / "one" radical in Chinese characters (Kangxi radical 1) / also pr. [yao1] for greater clarity when spelling out numbers digit by digit

to touch / to make contact with sth / to stir up sb's emotions

namely / that is / i.e. / prompt / at once / at present / even if / prompted (by the occasion) / to approach / to come into contact / to assume (office) / to draw near

to be dispersed / to break down / to fester / to ulcerate

used in 潰膿|溃脓[hui4 nong2] / Taiwan pr. [kui4]

(bound form) (of floodwaters) to break through a dam or dike / (bound form) to break through (a military encirclement) / (bound form) to be routed; to be overrun; to fall to pieces / (bound form) to fester; to ulcerate