Idioms 2.

Aching heart: feeling of sadness or pain that one has when love has been lost or has faded.
Eat one's heart out: feeling negative emotions like jealusy, anguish or bitterness about something.
Follow one's heart: to do something according to one's feeling.
Have a heart of stone: to be cold and unfriendly; showing no sympathy to others
Heavy heart: a feeling of unhappiness or being weighed dowm with sorrow (very sad, sadness).

Cyberbullying.

Teasing: to irritate someone with jokes, playful words or actions.
Gossiping: a perosn who enjoys or indulges in gossip.
Threats: a perosn who threatens.
Harassment: to trouble by repeated attacks.

Unit 1.

Fall out: unexpected or incidental effect.
Conceited: having an excessively favorable opinion of one's abilities, appearance,etc.
Achivements: something successfully accompished.
Enrage: to make extremely angry.
Hustle: a scheme of persuading someone to buy something unprofitable.
Bustle: to move or act with great energy.
Cheer: give comfort or support to.
Guilty: to blame.
Value: consider the importance of.
Eager: having or showing interest.

Starter Unit.

Hack into: access without authorization.
Pop up (ads): advertisment.
Boot up: Switch on.
Back up: make copies.
Hook up: connect.

Idioms.

Have a whale of time: dance all night long.

A party animal: a person who enjoys going to parties.
Throw a party: to hold or arrange a party.
Party pooper: a person who spoils or ruins a party because of not taking part of the activity or by leavimg early.
Dance the night away: to have a great or an enjoyable time.
Bouncer: a person who is emploed at a bar.
Party foul: something socially unaceptable done in a social gathering.
Socially unaceptable: something that is looked down upon by the older generations.
Social butterfly: someone who is very social and easy going.
Wallflower: someone shy.
Party crasher: someone that invites himself in a party he isn't even invited to.
Wet blanket: someone who ruin other people's good times.