To sarcastically suggest that you are speaking the truth, although you and probably the other people know that you are lying.
Dave: Steve bruv, did you see that Man just jump 50 ft in to the air?
Steve: Nah!! Actually?
Dave: Yeah bruv, swear up.
by abcdefg h May 22, 2014
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Definitely did something wrong, and is doing a poor job at covering it up.
Doug - "Hey you didn't have anything to do with that missing child, did you?"

Dave - "I didn't do shit, I swear."
by toastyptsd May 11, 2023
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When a Geordie is angry they say this
"I swear down mate I'll punch you!"
by Big mugger June 20, 2022
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To release air from the anus and call it a swear word
(Fart) oops excuse my bum language I just did a bum-swear
by Jusseppi April 21, 2022
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n. A conversation where one or more of the participants curse casually and frequently.
Greg: "%^*& you, you ^*&@ing piece of god%&^ @#$%!"
Bob: "Whoa, watch the swear fair, dude. There's children around here."
by hopeofmen August 12, 2011
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over-swearing si when a person swears too much in their sentences for no absolute reason at all even though sometimes the sentence sometimes make sense
why are you over-swearing, you don't need a swear every 2 words for your sentences
by No_Idea_for_A_Good_Name February 21, 2022
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