'suckl' basically means the same as 'suck' when used in the context of "You suckl". The difference is that it is more of an insult and generally means immature and sucky.
<Energizer_Bunny> you suckl
<MisterCow> Heh
<MisterCow> suckl!
<Energizer_Bunny> yes, suckl
<MisterCow> Ace
by Stu April 23, 2005
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to be horrible or horrendous at something. comes from sucking and to suck.
eg. you see him play? he's fucking suckles.

eg2. good job suckles, you really blew that one.
by K Thedon June 11, 2007
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Noun: Person who uses every oppurtunity he/she gets to brag arrogantly about how he/she got drunk, high, wasted, or anything else considered gangster
***** is a huge suckling, he was bragging about doing grass, but he barely hit the blunt.
by Swagsurferr September 28, 2010
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When you eat that ass like a ice cream
You suckled me good last night jacob
by Manieri22749 August 30, 2018
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A really small, uncomfortable chuckle that you do when you're watching a movie and it's been fine the whole time until your parents walk in and a random sex scene comes on.
Mum: Hey honey, what are you watching?

*sex scene comes on*
Me: *suckles*
by kikum October 8, 2015
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This is a word referring to if u give head to someone. If u suck someone off basically!
Freya: Hi there nicola
Nicola: Fuck off suckles
by sookie123 August 23, 2006
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