tootle

tootle
/ˈtu:tl; `tutl/ v
1 [I, Ipr] ~ (on sth) toot gently or repeatedly 发轻柔或连续的嘟嘟声.
2 [Ipr, Ip] (infml 口) go in a casual or leisurely way 悠闲自得地走
    tootling into town 溜溜达达地进城去
    tootle around on one's bike 骑自行车闲逛.

牛津英汉双解词典