(題外話，英式說法是touch somebody up,更容易理解吧!)
以下是劍橋字典關於feel somebody up的解釋:
to?touch?someone?sexually,especially?someone you do not know,for?your?own excitement(簡單來說，就是毛手毛腳的意思):
例子: That's the third time?she's been?felt?up on the bus.這是她第三次在公交車上被人吃豆腐了。