Katavahapiya

Used in Sinhala.
Shut up (ruder version of kata vahaganna and katavahapan).

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Puka

"Puka gahaganin!"
"Thaaththata puka arapang!"

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Used in Sinhala.
Shut up (ruder version of kata vahaganna).

Variations:
Katavahapang
Katavahahang
Katavaahang

"Ane katavahapan bang."
"Thoge katavaahang oi."

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Used in Sinhalese.
Risinth.

"Mey yaka paang batta."
"Oi Sudu Batta!"

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Used in Sinhala.
Penis (swear). Closest English equivalents would be dick and cock.

Variations:
Pakaya (used to describe a person)

"Ara pakaya."
Sexual ways it can be used which I am not gonna type out.

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Used in Sinhala.
To fuck.

Other forms for the word include:
Hukanawaa
Hukaagannawa
Hukaa gannin
Hukapang/Hukahang

"Thota hukapang yako!"
"Ammata hukapang!"
"Methana ammata hukaagan nathuwa pala huththo yanna!"

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Used in Sinhala.
You. Slightly more informal and rude than oyaa but still casual and used in friend groups.

Plural:

U'mbalaa

"U'mba monaa karanawa da manda!"
"U'mba maara pissek bang."

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