I. slant·er -tə(r) noun
( -s )
Etymology: slant (II) + -er
: one that slants something (as a person with a decidedly sloping handwriting)
II. slan·ter adjective
Etymology: probably modification of Dutch slenter trick, lie, shift, slow pace, loitering gait, from slenteren to saunter, loiter; akin to Swedish slinta to slide — more at slant
Australia : tricky , unfair , untruthful