How can complement of degree apply at: 他喝酒喝得睡着了。 弟弟高兴得跳了起来。
Refering to Chinese dictionary,when &quot;得&quot; is used after a verb or an adjective word, the complement can not only discribe the degree,but also mean the result.\

得（de）：用在动词或形容词后面，连接表示结果或程度的补语。————《现代汉语词典》 （第六版）

(Used behind a verb or an adjective word, connect to the complement that shows the result or degree._____from.Morden Chinese Dictionary 6th edition)
Some example:
&quot;我跑得喘不过气。&quot; ==&gt;&quot;I run out of breath.&quot;
&quot;Out of breath&quot; is the result of &quot;run&quot;.