"testy call" is the female-abbreviated version of booty call which can also be the equivalent sentence of "getting the d" - a sentence generated to stabilize the man-to-female relationship and work as a stable pillar for equality.
"I'm totally going to invite the hot guy from the bar last week over for a Testy Call"
Meaning really tight shorts or pants on a male which hug and accentuate his man jobblers to the point which you are concerned they shall pop out. (Shout out to David Bowie in Labyrinth and, on occasion Jared Leto)
In a sentence: CJ, Josh, Patty, and Javondrellle all went to the gym in their testy nestys... They got the clap.