1.
If you say that someone pisses around or pisses about , you mean they waste a lot of time doing unimportant things. ( mainly BRIT INFORMAL, RUDE )
Now, let’s stop pissing about, shall we?
= mess about
PHRASAL VERB : V P [ disapproval ]
2.
If you say that someone pisses around or pisses about , you mean they behave in a silly, childish way. ( BRIT INFORMAL, RUDE )
We just pissed about, laughing.
= mess about
PHRASAL VERB : V P