tamperகுழப்புkuḻappu(koḻappu)(3 tr)meddle foolishly or rashly; interfere, bring about an improper situation or condition by clandestine means; meddle or interfere with; monkey around with, mess about, tinker, or fiddle with, alter/change/adjust illegally
Usage:
பெரியவரை இப்படிக் குழப்பிவிட்டாயே!periyavarai ippaṭik kuḻappiviṭṭāyē!
periyavare ippaḍi koḻappiṭṭiyee?
You have tampered with things and managed to totally confuse the old man!