Chad Johnson dropped $4,000 to take 200 people to the movies Tuesday night -- just because he felt like it.
The movie -- "Office Christmas Party."
The location -- Davie, FL.
Johnson tells TMZ Sports he sent out flyers and email blasts and comped the first 200 people to arrive just because he "wanted to keep the holiday spirit alive." He's been doing stuff like this for years.
By the way, he also played cupid ... hooking up single guests with other singles.