Give up on and Rat on

Rat on and give up on are semantically related. In some cases you can replace term "Rat on" with "Give up on", this phrasal verbs are similar.

Rat on verb - To give information (as to the authorities) about another's improper or unlawful activities.

Give up on and rat on are semantically related. Sometimes you can use "Give up on" instead a verb "Rat on".