Dark ark is a Hink-Pink for Noah's boat with the lights off.
black sack
dark park
black crack
Yes, a hink pink for "dark crevice" could be "gloomy groove." Both phrases feature a dark or shadowy description followed by a similar sounding word with a different meaning.
tan man, Dark Mark
night sight
gray day, bleak weekgray day, bleak week
Hink-Pink is a game in which player guess a pair of rhythmic words. e.g Ocean-Lotion, Funny-Money
Thin inn is the hink pink for skinny hotel.
The hink pink for "boy's test" is "lad's quiz."
lathering gathering is the hink pink for a group of men shaving
"Man pan" is a hink pink for male pot or masculine skillet.