on the prowl
Hunting or seeking; prowling about.
The cat was always on the prowl for bit of string or a dangling shoelace.
ADJ.
grave, hungry
PROWL + NOUN
cemeteries, midnight, night
PREP.
around, on
verb
To rove over, through, or about in a stealthy manner; especially, to search in, as for prey or booty.
Watch the lioness prowling in the shrubbery for zebras.
It's easy to sneak vandalism into Wiktionary as there are few other users prowling the Recent Changes page.
To idle; to go about aimlessly.
That dandy has nothing better to do than prowl around town all day in his pinstripe suit.
To collect by plunder.
to prowl money
noun
The act of prowling.
I'm going on a midnight prowl.
verb — loiter about, with no apparent aim
Hunting or seeking; prowling about.
The cat was always on the prowl for bit of string or a dangling shoelace.
Watch the lioness prowling in the shrubbery for zebras.
WiktionaryIt's easy to sneak vandalism into Wiktionary as there are few other users prowling the Recent Changes page.
WiktionaryHe prowls each place, still in new colours decked.
WiktionaryI'm going on a midnight prowl.
WiktionaryRobbers prowl around at midnight.
Tatoeba · #278645Go, but a hungry wolf might prowl around there.
Tatoeba · #10795332i Register
In some senses, prowl is marked as obsolete, colloquial. Watch for register when choosing this word.