"Langís" can also figuratively mean "unctuous behavior".
"Mahigpít talagá ang nanay ni Jim. Hindî niyá makuha sa langís tuwíng gustó niyáng humingî ng pera." = Jim's mom is really strict. He can't persuade her through fawning every time he wants to ask her for money.
Common verb forms:
Maglangís = to secrete oil; to fawn or behave unctuously (infinitive/imperative; subject-focused) - naglangís, naglálangís, maglálangís
Langisán = to apply oil on something; to fawn on someone (infinitive/imperative; object-focused) - nilangisán, nilálangisán, lálangisán
"Naglálangís ang balát namin kapág nápakainit ng panahón" = Our skins become oily (secrete oil) when the weather is very hot.
"Para ka payagang pumuntá sa party sa Sábado, maglangís ka muna sa tatay mo" = So that you'd be allowed to go to the party on Saturday, fawn on your father first.
""OK ang lola ni Jim. Lálangisán lang niyá nang kaúntî, nabíbigyan na siyá agád ng pera" = Jim's grandma is OK. He'll just fawn on her a little and she'd already be readily giving him money.