Suss

I just can't suss it out.

I'm trying to suss her out.

2001, Mo Hayder, The Treatment, 2008, Bantam, UK, page 244, ‘Yes – OK, OK. Try not to struggle, Tracey. It just makes you look even more suss.’

2009, Barbara Ward Smith, Dead Centre: Murder Mystery, AuthorHouse, UK, page 191, I think it was Amber Johnson dressed up said Marc, but its proving it, we don′t have much to go on according to her said Jan her friend has been driving her car, yes very convenient said Marc and it′s even more suss that this friend has gone on holiday, did she ever give us the name of this mystical friend? Asked Jan.

Think we're standing for injustice / White gets two and black gets five years / Well it took me quite a while to suss this

This David did without the crook knowing he had been sussed out.[…]When David returned home after sussing this new crook, he made sure one or two key people were informed about his true nature, and they were all then further protected.

For some other guys who′ve sussed me out, it′s taken them quite some time. A certain regular of mine comes through three or four times a night, but not every night.[…]That said, this regular never sussed for a hell of a long time.

2008, David Burchell, Trying to find the sunny side of life, Tony Jones, Best Australian Political Writing, page 275, It occurred to me that Matt′s mates, far from being proper objects of solicitation and sympathy, actually must feel they had life sussed.

‘I′m surprised at you, Danny Weston! I thought you had a bit more suss than this. I never thought you were capable of something so ... silly.’

The next painter the sultan approached was a sly old dog with more suss than a Cockney two-card trickster.