吐く

1. godan verb, transitive to vomit; to throw up; to spit up
2. to emit; to send forth; to breathe out
3. to give (an opinion); to make (a comment); to express; to tell
4. to confess

つく

1. godan verb, transitive, usually in kana to breathe out; to breathe
2. usually in kana to tell (a lie); to use (foul language)
3. usually in kana to vomit; to throw up; to spit up