Feel up and Felt up

Felt up and feel up are semantically related In some cases you can replace term "Felt up" with "Feel up", this phrasal verbs are similar.

Felt up verb - Change texture so as to become matted and felt-like.

Feel up and felt up are semantically related in touch topic. Sometimes you can use "Feel up" instead a verb "Felt up", if it concerns topics such as closely, make physical contact.