The act of sucking air in through ones teeth, or 'kissing' one's teeth to show either, disdain, disappointment, disgust, disagreement or disapproval = struups. Favoured by many Caribbeans.
(It can also just be said. 'str-uups'.)
''Clive let it be known that he wasn't impressed by the increased cost of his air fare..'' *struups*