to bob up
- phrasal verb
- /bɑb ʌp/
- Shots pursue Caravaggio as he disappears behind the rubble, then bobs up again as he darts inside a blasted building.
Examples
-
In a moment, its head bobbed up again just barely beyond arm's reach.
Fiction book (2002) -
The silver thimble on her finger bobbed up and down.
Fiction book (1997) -
Something bobs up in the surf.
Fiction book (1997) -
At the stern, the Chief spots Jordan bobbing up in the boat's wake.
Fiction book (1997) -
Finally, he sees Jean's hairdo bobbing up and down a block away.
Fiction book (1996) -
One of the hens has escaped the crate and is bobbing up and down in the waves.
Fiction book (1993) -
I trained the binoculars on Andrea, who hid behind a lamp post, hugging herself and bobbing up and down to keep warm.
Fiction book (1991) -
Waves rolled up on his hairy chest and lapped at his throat as he bobbed up and down, the wavering steam blurring his vision.
Fiction book (1993) -
Suddenly, the ball bobbed up from beneath the waves, surprising everyone on the boat.
-
She didn't expect him to bob up at the party after all these years.
Synonyms
To be mentioned in a discussion
Start to exist or happen
Appear suddenly and briefly when you are not expecting it
To appear quickly in a place, often as new shops or cafes
To appear suddenly, often as a problem or question
Antonyms
How Sudden
Surface Forms
Morphology
The meaning 'to appear suddenly' is directly derivable from combining 'bob' (a short, quick vertical movement) with 'up' (toward a higher or visible position); the mental image of something moving up into view matches the MWE sense. This motion-verb + particle composition is a common, mostly literal pattern (similar to 'pop up'), so a B1 learner who knows the constituents is likely to infer the meaning.
Etymology
Bob up comes from the simple image of something floating and quickly rising above the water, like a cork that bobs up after being pushed down. So, when a person or problem bobs up, it means it 'appears suddenly or unexpectedly'.