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2時間くらい新幹線遅延してるんだけど隣の白ギャルがついに…
→ “The Shinkansen is delayed for about 2 hours, but finally the white gyaru next to me...”
2時間 nijikan = two hours (noun phrase)
2 ni = two (number)
時間 jikan = time / hour (noun)
くらい kurai = about / around (adverbial particle)
新幹線 shinkansen = Shinkansen (bullet train) (noun)
新 shin = new
幹 kan = trunk / main axis
線 sen = line / track
遅延 chien = delay (noun)
遅 oku = late / slow
延 en = extend / prolong
してる shiteru = doing / in the state of (colloquial contraction of 'shite iru')
し shi = do / make (te-form stem)
てる teru = continuing action (colloquial auxiliary)
んだけど ndakedo = but / however (colloquial connector combining 'no' and 'kedo')
隣 tonari = next to / neighbor (noun)
の no = of / possessive marker (particle)
白ギャル shirogyaru = white gyaru (slang for a specific type of Japanese fashion girl) (noun phrase)
白 shiro = white
ギャル gyaru = gal / girl (loanword from English 'girl')
が ga = subject marker / focus particle (particle)
ついに tsui ni = finally / at last (adverb)
… = ellipsis / trailing off (punctuation)