1tweak 
/ˈtwi:k/ verb
tweaks; tweaked; tweak·ing /ˈtwi:k/ verb [+ obj] 1 : to change (something) slightly in order to improve it : to make small adjustments to (something)
▪ The company may have to tweak [=adjust] its image. ▪ Our software developers are tweaking [=fine-tuning] the program. ▪ We just wanted to tweak his original idea a bit. 2 : to injure (a part of your body) slightly
▪ He tweaked his ankle playing soccer. 3 : to pinch and pull (something) with a sudden movement
▪ My brother hates it when our grandmother tweaks his cheek. 4 chiefly US : to criticize or make fun of (someone or something)
▪ His friends tweaked [=teased] him for gaining weight.
▪ The company may have to tweak [=adjust] its image. ▪ Our software developers are tweaking [=fine-tuning] the program. ▪ We just wanted to tweak his original idea a bit.
▪ He tweaked his ankle playing soccer.
▪ My brother hates it when our grandmother tweaks his cheek.
▪ His friends tweaked [=teased] him for gaining weight.
