Salumpwet (literally, ass catcher - from "pangsalo ng pwet") isn't a real word in Tagalog. It's mostly a joke. Other jokes are salongganisa (brief), salongsusu(bra),salonggunit (panties), etc
The more common Tagalog (non-loan) word is upuan (literally, a thing to sit on)
"Gumawa ka na ba ng assignment mo? Yinayaya ka ng mga kaibigan mo na lumaro ng basketball sa labas."
I don't think there is code switching here. This sentence is purely Tagalog grammar, with English loanwords. (My first example)
Code-switching would be more like "Tapos ka na ba sa assignment mo? Tara, let's play basketball na". (Second point). The first sentence follows Tagalog grammar. "Let's play basketball" obviously, follows the English grammar
Basically, not only do you switch between words, but also grammar rules. Similar to Spanglish and Hindlish.
Note: in standard Tagalog, "lumaro" is hardly used. More often than not, MAGlaro is used. Same with bumasa, it's not as used as MAGbasa. The only time I see "bumasa" is on academic papers that discuss Austronesian alignment in Tagalog.
Conyo English, for whatever it is, is basically the Philippine version of "Singlish"(https://en.m.wikipedia.org/wiki/Singlish ) where the English grammar is considerably altered. I guess, we can call it "Philippine Creole English". Kind of like the English version of Chavacano.
Then there's a whole new language that isn't Taglish, not conyo and not familiar Tagalog - the Beki (gay) language. It follows Tagalog grammar but is full of "innovative words". " Tom Jones na akech" (Gutom na ako). Most Tagalog slang words nowadays are derived from the Beki language (jologs, baduy, award, jowa, rampa, girlaloo)
This is why I'm hesitant to criticize Taglish, Conyo English, Beki Language and "familiar" Tagalog with lots of loanwords. It morphs to different forms and subcultures. I think criticizing these is like criticizing Chavacano for being "bad Spanish".
Then there's Davao Tagalog which is actually more of "Bisalog".
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