to break off or break open sth with one's hands / (fig.) to break off (a relationship)
掰
=
手
+
分
:
Beelzebub (b) is terribly annoyed by a ticking under the earth in front of the airplane (ai1), so he tears the earth open and finds a ticking stopwatch (分). Although he is wearing two baseball gloves (手) he still manages to break the watch open (掰) with his hands to stop the ticking.