vegan (n)
/ˈviɡən/

a person who does not eat any animal products such as meat, milk, or eggs, or even do not use animal products such as silk or leather

It's just second nature (idiom)
/ɪts dʒʌst ˈsɛkənd ˈneɪtʃər/

to mean 'effortless to think about'

option (n)
/ˈɑpʃn/

something that you can choose to have or do

of course (idiom)
/ʌv kɔrs/

used to show that what you are saying is obvious or already known

pop up (phrasal verb)
/pɑp ʌp/

appear suddenly or unexpectedly

turned off (phrase)
/tərnd ɔf/

repulsed, have desire for something eliminated

pretentious (adj)
/prɪˈtɛnʃəs/

trying to appear important, intelligent, etc. in order to impress other people; trying to be something that you are not, in order to impress

not go over very well (phrase)
/nɑt ɡoʊ ˈoʊvər ˈvɛri wɛl/

not popular

switch (n)
/swɪtʃ/

a change from one thing to another, especially when this is sudden and complete

go cold turkey (idiom)
/ɡoʊ koʊld ˈtərki/

quit suddenly and totally

to give it a shot (phrase)
/tu ɡɪv ɪt ə ʃɑt/

to try it

turn over a new leaf (idiom)
/tərn ˈoʊvər ə nu lif/

make a positive change

non-existent (adj)
/ˌnɑnɪɡˈzɪstənt/

not existing; not real

stint (n)
/stɪnt/

a period of time that you spend working somewhere or doing a particular activity