EN backside
volume_up
{noun}

1. colloquial

backside (also: ass, behind, butt, keister)
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nalgas {f pl}
backside (also: behind)
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ancas {noun} [LAm.] [coll.] (de persona)
backside (also: behind)
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fundamento {m} (nalgas)
backside (also: behind)
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fundillos {m} [Col.] [coll.] (nalgas)
backside (also: bum, butt)
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posaderas {f} [coll.]
backside (also: bum, butt)
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sentaderas {f} [SAm.] [coll.]
backside (also: seat)
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traspontín {m} [coll.] (trasero)
backside
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traste {m} [coll.] (trasero)
backside (also: behind)
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fundillo {m} [Col.] [coll.] (nalgas)

2. "buttocks", colloquial

backside (also: keister, buns, buttocks, rear end)
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trasero {m} [coll.]
what she needs is a kick up the backside
lo que necesita es una patada en el trasero
backside (also: buns, duff, tush, booty)
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culo {m} [coll.]
he deserves a good kick up the backside
merece que le den una buena patada en el culo

3. British English, colloquial

backside (also: behind, rear, rear end)
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asentaderas {f} [euph.]

4. "reverse", American English

backside (also: back, rear)

5. British English

backside (also: bottom, behind)
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cola {f} [LAm.] [coll.] (nalgas)
Greece is on its backside; Spain, your country, is in dire straits as well.
Grecia se encuentra en la cola; España, su propio país, también está pasando por una difícil situación.

Synonyms (English) for "backside":

backside