Is it correct to refer to the last 2 items in a list as "the latter two"?

For example, the phrase:

I should quit trying to go to the gym on Fridays, and maybe Wednesdays and Mondays, and go on Thursdays plus any of the latter two.

What the speaker is trying to say is that although on Fridays is definitely not possible to go, Mondays and Wednesdays are likely (but not always) along with Thursdays.

Probably the last two is better or the correct way but using latter sounds not so wrong to me.

Former means “the first of two” and latter means “the second of two.” Notice that you should use these terms when speaking of only two previously mentioned items. If the options include three or more, former and latter do not apply.

Relevant question.