吃屎都赶不上热乎的

chī shǐ dōu gǎn bu shàng rè hu de

lit. if you were eating warm shit, it'd be stone cold by the time you finished it (saying)

fig. (of a person) too slow; can't keep up

chī

variant of 吃[chi1]

shǐ

feces; excrement; a stool

dōu

all; both; entirely

gǎn

to overtake; to catch up with

bu

no; not so

shàng

(bound form) up; upper; above; previous

to warm up

hu

(classical particle similar to 於|于[yu2]) in

de

of; ~'s (possessive particle)