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1.
To discover or realize information, usually with a level of intuition playing a role.
She was able to suss out his lies very quickly.
by Wylie June 24, 2003
 
2.
Short for the word 'suspicious'.
I don't know whats going on, its a bit suss.

She looks pretty suss, wonder whats happening?
by Pen4 May 14, 2005
 
3.
v. sussed, suss·ing, suss·es Slang

1. To infer or discover; figure out
2. To size up; study
1."I think I'm good at sussing out what's going on" (Ry Cooder).
2."Suss out the designers in whom you are interested" (Lucia van der Post).
by hawa_63 January 28, 2012
 
4.
Jamaican Slang/Patois for Information and or Gossip ("411")
Wah de suss?
by Zedebe November 02, 2010
 
5.
Adjective (Chiefly Rio Grande Valley, TX)
1. Filthy, disgusting or revolting. 2. Promiscuous
Noun (Plural: Susses)
1. A filthy, disgusting or revolting person.
ORIGIN: Derived from Spanish 'sucio' (dirty).
1. Dude, you look fucking suss. Take a shower.
2. Man, that bitch is suss; she's slept with half the school.
3. Those susses just got out of jail.
by Cid Deuce March 07, 2003
 
6.
To check something out or investigate something.

I watch a ton of shows with British speakers and that is the way i hear it used.

I have never heard an American use the word ever.
I'll go suss it out.
by Garrette Jax June 05, 2009
 
7.
Anything that can be purchased in a store can be considered a Susses. Used when you don't want people to know what you are buying. Can be used to describe an affair
1- "I'm going to the store to buy some susses, need anything?"

2- "I will meet you at the hotel at 6. I'll just tell my husband I need to pick up some susses"
by Johnny Assome July 05, 2010