Default Wakelock notificationpeek_partial

What is this?

Sent from my Nexus 5 using XDA Premium 4 mobile app
DEVICE: ....Nexus 5 (AT&T) / Samsung Note 3 (Verizon)
CARRIER: ...AT&T / Verizon Wireless
ANDROID: ...4.4.2 / 4.4.2
ROM: .......Paranoid Android / Beanstown 4.4.2 Stock
KERNEL: ....Stock PA / Stock
Recovery:... TWRP / Safestrap

RETIRED: iPhone 3G MyTouch 3G Slide iPhone 3G Samsung Galaxy S2 I777 Nexus 4