1 C1 neutral
To remove something from a surface or area by applying suction.
"The technician used a specialised tool to suck off the residue from the circuit board."
separable
suck off
C1 slang separable transitive
To remove something from a surface using suction; also a vulgar slang term for oral sex.
In plain English
Pull something away from a surface using a sucking force. (Also has a sexual meaning in very informal/vulgar language.)
What does "suck off" mean?
2 meanings, ordered from most common to least. Color-coded by CEFR level.
2 C1 idiomatic slang
(Vulgar slang) To perform oral sex on someone.
separable
Literal vs figurative
Words literally mean
To suck (draw by suction) something off a surface — pulling it away with a sucking motion.
Actually means
Pull something away from a surface using a sucking force. (Also has a sexual meaning in very informal/vulgar language.)
Usage tip
The mechanical sense (removing debris by suction) is technical and uncommon. The sexual sense is vulgar and inappropriate in formal or educational contexts. ESL learners should be aware of both meanings to avoid embarrassment. Marked as C1 due to the need for social awareness rather than grammatical complexity.
Words that pair with "suck off"
Natural word combinations native speakers use most often.
debris residue dust
How to conjugate "suck off"
The five tense forms you'll use most often.
Base
suck off
I/you/we/they
3rd person
sucks off
he/she/it
Past simple
sucked off
yesterday
Past participle
sucked off
have + pp
-ing form
sucking off
continuous
Hear "suck off" in the wild
Listen to native speakers using "suck off" in real YouTube videos — click a clip to watch it on Looplines.
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