How I Met Your Mother: "A Surprise Party"

To deal with or be responsible for

I can handle the decorations.

managetake care of

To organize and host a party

Let's throw a party this weekend!

hostorganizearrange

Impressively great

That was an epic fail!

fabulousimpressiveremarkable

To retain possession of

Let's keep the change.

holdmaintain

A social gathering, usually of invited guests, at which people eat, drink, talk, dance, etc

birthday party

celebrationgatheringrevelry

To talk about something with another person or other people

They are discussing the plan.

talkdebatenegotiate

An unexpected or astonishing event, thing, or fact

Marshall deserves this surprise.

astonishmentshockamazement

to take precautions in order to guarantee a particular outcome

make sure

ascertain

A building or part of a building licensed to sell alcoholic drinks; a bar

We can pretend we're running late and then bring him to the pub.

bartavern

A distinctive taste, smell, or quality

What flavor is your cake?

tastearomaessence

to have an idea that something is likely or true

without him suspecting anything

realizebelieveimagine

A detailed proposal for doing or achieving something

They were making plans for the summer.

schemesarrangements